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Three flame retardants with very similar molecular structures showing three different packing patterns have been studied. The crystal structure of 2,2',6,6'-tetrachloro-4,4'-propane-2,2-diyldiphenol, C15H12Cl4O2, can be described as a packing of sheets. The packing shows a very short intermolecular Cl...Cl contact distance of 3.094 (2) Å between pairs of mol­ecules inside each sheet. The crystal structure of 2,2',6-tribromo-4,4'-propane-2,2-diyldiphenol, C15H13Br3O2, can be described as a packing of doubly stranded helical square tubes. These square helices are interconnected through Br...Br contacts between different helices. Finally, a previously known structure, 2,2',6,6'-tetrabromo-4,4'-propane-2,2-diyldiphenol [Simonov, Cheban, Rotaru & Bels'skii (1986). Kristallografiya, 31, 397-399], C15H12Br4O2, which is the most commonly used flame retardant and which has twofold rotational symmetry, has been refined in the correct absolute configuration. The structure shows large differences from the chloro analogue with regard to packing, van der Waals distances and hydrogen-bond distances.

Supporting information

cif

Crystallographic Information File (CIF) https://doi.org/10.1107/S0108270101012112/os1139sup1.cif
Contains datablocks I, II, III, global

hkl

Structure factor file (CIF format) https://doi.org/10.1107/S0108270101012112/os1139Isup2.hkl
Contains datablock I

hkl

Structure factor file (CIF format) https://doi.org/10.1107/S0108270101012112/os1139IIsup3.hkl
Contains datablock II

hkl

Structure factor file (CIF format) https://doi.org/10.1107/S0108270101012112/os1139IIIsup4.hkl
Contains datablock III

CCDC references: 175084; 175085; 175086

Comment top

In recent years, several reports have indicated that the widespread use of flame retardants is responsible for the bioaccumulation of these compounds in nature. The decomposition of flame retardants in the natural environment and the products obtained from these is a long-running project in our department. The goal is a better understanding of the reactivity of these compounds in the environment.

The different substances observed in decomposition experiments that mimic realistic circumstances in the natural environment indicate large differences among the decomposition products, depending on the halogen substitution pattern and on whether the reactant is in aqueous solution or in the solid state.

The title compounds are members of a class collectively named `halogenated bisphenols', which are used as reactive flame retardants. This means that they are not only mixed together with a prefabricated plastic material but also take part in the polymerization process, where they are covalently bound into the polymer. The salient feature of reactive flame retardants is thus that they migrate less easily to the environment, due to this covalent bonding to the polymer. The corresponding additive flame retardants, which are simply mixed into a pre-produced polymer, migrate more easily (Kuryla & Papa, 1979).

The three title compounds, 2,2',6,6'-tetrachloro-4,4'-propane-2,2-diyldiphenol, (I), 2,2',6,-tribromo-4,4'-propane-2,2-diyldiphenol, (II) and 2,2',6,6'-tetrabromo-4,4'-propane-2,2-diyldiphenol, (III), are three common flame retardants with pseudo-isomorphous molecular structures (Figs. 1–3), but exhibiting very different crystal structures. \sch

The first two of the title compounds, (I) and (II), represent previously unknown structures, while the third, (III), has been reported previously by Simonov et al. (1986). Diffraction data have been remeasured for (III), and we have changed the absolute configuration of the molecule and also the space group, from P41212 (92) to P43212 (96), as these two constitute an enantiomorphic space-group pair. Some anomalous bond distances found with the refinement in P41212 (92) are shown to be absent when refining the structure model with the correct absolute configuration in P43212 (96).

The crystal structure of (I) is built up by a packing of sheets of hydrogen-bonded molecules, further stabilized by a very short intermolecular Cl···Cl contact: Cl1···Cl1i = 3.094 (2) Å [symmetry code: (i) 1 - x, -y, -z]. This is shorter than is observed in most of the well determined (R 10%) and non-disordered similar structures in the Cambridge Structural Database (CSD; Allen & Kennard, 1993), for instance, triphenylchloromethane (Dunand & Gerdil, 1982), where the shortest intermolecular Cl···Cl distance is 3.210 Å, which is itself considered to be very short (Desiraju, 1989). A similarly short intermolecular inter-halogen distance does not occur in the bromo analogue, (III).

The shortest intermolecular O···O contact distance in (I), O1···O2ii 2.723 (3) Å [symmetry code: (ii) x, y - 1, z], is also shorter than the corresponding shortest intermolecular O···O contact distance in (III) [O···O 3.11 (1) Å], thus indicating stronger hydrogen bonding between the molecules of (I) along the b axis.

Regarding the close similarity of the molecular structures, a reasonable conjecture would be that the tetrachlorobisphenol in (I) should have a rather similar structure to the brominated analogue in (III). The present investigation shows that this is not the case at all, neither concerning space group nor packing of the molecules. Further investigations will be carried out to elucidate the physical background to the close Cl···Cl contact in (I), whether it is a consequence or a reason for the packing of (I).

The hydrogen-bonding scheme in (I) cannot be deduced with certainty, since at least two schemes are possible (Fig. 4). The conformations of the four hydroxyl groups are restricted by the space-group symmetry. One can speculate on other hydrogen-bond schemes which break the space-group symmetry, e.g. with the four hydroxyl groups pointing to each other in a circular pattern, or a disordered hydrogen-bond scheme. This possible violation of the space-group symmetry by the H atoms cannot be detected in the diffraction data.

The second compound, (II), differs from the most commonly used flame retardant, (III), only by the lack of one Br atom, yet it crystallizes in a totally different structure. The crystal structure of (II) can be described as a packing of square helices running along the c axis. Each helix is built of two strands of hydrogen-bonded molecules of (II), further stabilized by interactions between the halogens and the aromatic ring systems. Three molecules of each strand in the helices are shown in Fig. 5. The two strands fit together to make up a square-type double helix in the ab plane. The shortest Br···Br distances (3.71–4.21 Å) correspond to intermolecular Br···Br contacts between different helices.

In contrast with the plausible hydrogen-bonding pattern of (II), no appreciable hydrogen bonding can be deduced from the packing of (III). Here, the molecules preferentially pack in long chains, with interactions between the aromatic rings and the aliphatic central part of the molecule, to give the packing pattern shown in Fig. 6, which is completely different from (II). The rather long intermolecular O···O contacts in (III) (>= 3.1 Å) may contribute to a minor stabilization of the structure of (III). The reported position for atom H1 involved in the possible hydrogen bond is that derived from the least-squares calculations. A geometrically computed position for H1 (0.2458, 0.2955, 0.0487) gives a linear link to the plausible acceptor O1iii [symmetry code: (iii) y, x, -z]. Atom H1 and the symmetry-related H1 cannot both be linearly directed to the corresponding acceptor, but there is a possibility of a hydrogen positional disorder around atom O1, giving some slight stabilization due to intermolecular hydrogen bonds in (III).

Compound (II) exhibits much shorter intermolecular O···O distances compared with (III), so the contribution from hydrogen bonds to the stabilization of the structure is probably much larger for (II) than for (III). Similar Br···Br contact distances exist in both (II) and (III). In (II), the intermolecular Br···Br distances are >3.71 Å; in (III), these distances are >3.93 Å. This also indicates slightly stronger intermolecular bonding involving the Br···Br contacts for (II) compared with (III).

Both rings of (I) are planar, to within 0.013 Å for C4—C9 and 0.010 Å for C10—C15. Atom Cl1 involved in the very short intermolecular Cl···Cl contact is within 0.007 (5) Å of the plane defined by the C atoms in the aromatic ring. Atom O1 of the C4—C9 ring has the largest deviation from the ring plane. This can be interpreted as originating from effects by the short intermolecular O1···O2ii contact. The substituents of the second ring deviate more from the ring plane: deviations are 0.103 (5) for Cl4, 0.037 (5) for O2 and 0.098 (6) Å for Cl3. The angle between the two ring planes is 64.0 (1)° and this is smaller than corresponding interplanar angles of most of the similar structures from the CSD. There are seven structures with the 4,4'-dihydroxy-diphenyl-dimethyl-methane skeleton available in the CSD. One of them exhibits an interplanar angle of 64°, but the others have interplanar angles in the range 72–96°. The compound with the smallest angle, 2,2',6,6'-tetranitro-4,4'-isopropylidenediphenol (CSD refcode BIDJED; Wang et al., 1982) is also heavily affected by intermolecular bonding effects, similar to those present in (I). Smaller interplanar angles shown by similar compounds from the CSD are only present when either heavily steric interactions occur or a direct covalent bond restricts the conformation of the different rings.

Both rings of (II) are planar, to within 0.007 Å for C4—C9 and 0.02 Å for C10—C15. The ring with two Br substituents is more puckered than that with only one Br substituent. Most conspicuous are the deviations from the ring plane of the two hydroxyl O atoms: 0.108 (7) for O1 and 0.019 (7) Å for O2. These deviations can be described as a function of steric interaction. Atom O2 is pushed away by the close contact from Br1 and stays approximately in the ring plane, while atom O1 is pushed out of the ring plane, as it is situated in between two close Br substituents (Br2 and Br3). It is rather strange that the angular distortion found for O2 is also present for O1; the difference is mostly the out-of-plane deviation of O1. Both ring planes are defined solely by the C atoms in each ring. The angle between the two ring planes is 81.8 (2)°.

The ring of (III) is planar to within 0.011 Å (C3—C8). The two atoms deviating most from this plane are Br1 [0.022 (1) Å] and Br2 [0.118 (10) Å]. In this compound, the angular distortion of atom O1 with respect to the ring is much less than the corresponding distortions in the dibromo-substituted ring of (II). The ring plane is defined solely by the C atoms in the ring. The angle between the ring plane and the plane of the symmetry-related ring is 80.2 (2)°

Related literature top

For related literature, see: Allen & Kennard (1993); Desiraju (1989); Dunand & Gerdil (1982); Flack (1983); Kuryla & Papa (1979); Sheldrick (1997); Simonov et al. (1986); Wang et al. (1982).

Experimental top

All compounds were re-crystallized from ethanol at ambient temperature. Original source?

Refinement top

For (I), the H atoms were placed geometrically. The hydroxyl groups were allowed to rotate freely around the C—O bond, using the AFIX83 instruction in SHELXL97 (Sheldrick, 1997). The hydroxyl H atoms converged to a position that could be interpreted as a favourable conformation for the formation of a hydrogen-bonded chain of molecules. For (II), the spacegroup was determined from reflection conditions, indicating the unique space group Fdd2 (43). The Flack parameter (Flack, 1983) was refined as a scale factor of this model and of the inverted model. The refined value of the Flack parameter in this model was 0.49 (2); thus, a merging of Friedel-related reflections was done for the final model. The total number of 2936 reflections gave 1559 unique reflections plus 1377 Friedel-related equivalents. The merging of reflection data improved wR2 and R1 without affecting s.u.s by more than approximately 10%. All coordinates and derived distances etc. were equal to within 1 s.u. of the corresponding quantities. The highest residual electron-density peak (1.50 e Å-3) was located at (0.0814, 0.0417, 0.4149), 1.16 Å from H8, and should not be interpreted as an additional atom. Compound (II) is a strong absorber of Mo Kα radiation. Thus a possible cause for the residual peak is an imperfect absorption correction. The applied absorption correction decreased the internal R value from 0.25 to 0.06, but the remaining absorption effects could be an explanation of the positive ghost peak. However, the residual peak can also be interpreted as a ripple in the residual density map. For (III), the high internal R value is, to a large extent, dependent on the weak scattering from the crystal. Thus Rint is dominated by a large fraction of weak reflections. Of 1625 unique reflections in total, only 539 fulfil the criterion I 3σ(I). The internal R value calculated from these 539 reflections is 0.0634; the corresponding wR2 = 0.0464 and R1 = 0.0419, thus indicating insignificant differences to the refinement with all reflections present. The applied absorption correction did not affect the internal R value as much, but wR2 and R1 were significantly lowered, as expected. The total number of reflections (1625) was composed of 990 unique reflections and 635 Friedel equivalents. The Friedel equivalents were not averaged, as the four Br atoms of each molecule give a considerable contribution to anomalous dispersion effects and no signs of twinning were detectable. The present model was refined in P43212 (96), instead of the inverse spacegroup P41212 (92) previously used by Simonov et al. (1986). The Flack parameter clearly indicates that P43212 (96) is the correct space group. This change of absolute configuration eliminates some of the anomalous bonding distances previously reported by Simonov et al. (1986). For all three compounds, C—H distances were constrained to 0.93–0.96 Å, O—H distances to 0.82 Å and Uiso(H) to 1.2 or 1.5 times Ueq of the parent atom. Query.

Computing details top

Data collection: DIF4 (Stoe, 1988) for (I); EXPOSE (Stoe, 1997) for (II), (III). Cell refinement: DIF4 for (I); CELL (Stoe, 1997) for (II), (III). Data reduction: REDU4 (Stoe, 1988) for (I); INTEGRATE (Stoe, 1997) for (II), (III). For all compounds, program(s) used to solve structure: SHELXS97 (Sheldrick, 1990); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: DIAMOND (Bergerhoff, 1996).

Figures top
[Figure 1] Fig. 1. The molecular structure of (I) showing 50% probability displacement ellipsoids. H atoms are shown with an arbitrary radius.
[Figure 2] Fig. 2. The molecular structure of (II) showing 50% probability displacement ellipsoids. H atoms are shown with an arbitrary radius.
[Figure 3] Fig. 3. The molecular structure of (III) showing 50% probability displacement ellipsoids. H atoms are shown with an arbitrary radius.
[Figure 4] Fig. 4. A stereoview of the square pattern of the O atoms from four molecules of (I), illustrating the possibilities for hydrogen bonding. The H-atom positions shown were optimized from the geometrically calculated positions.
[Figure 5] Fig. 5. A stereoview of the three molecules of (II) in each strand of the two-stranded helix.
[Figure 6] Fig. 6. A stereoview of one of the chains of (III), dominated by hydrophobic interactions.
(I) 3,5,3',5'-Tetrachloro-4,4'-dihydroxy-diphenyl-dimethl-methane top
Crystal data top
C15H12Cl4O2F(000) = 1488
Mr = 366.05Dx = 1.550 Mg m3
Orthorhombic, PbcnMo Kα radiation, λ = 0.71073 Å
Hall symbol: -P 2n 2abCell parameters from 56 reflections
a = 25.675 (9) Åθ = 7.5–10.7°
b = 11.602 (3) ŵ = 0.75 mm1
c = 10.530 (4) ÅT = 293 K
V = 3136.6 (17) Å3Prism, light yellow
Z = 80.23 × 0.16 × 0.13 mm
Data collection top
Stoe AED2
diffractometer
1267 reflections with I > 2σ(I)
Radiation source: fine-focus sealed tubeRint = 0.061
Graphite monochromatorθmax = 25.0°, θmin = 1.6°
θ/2θ scansh = 130
Absorption correction: numerical
(X-RED; Stoe, 1997)
k = 113
Tmin = 0.843, Tmax = 0.906l = 112
3572 measured reflections4 standard reflections every 90 min
2771 independent reflections intensity decay: <1%
Refinement top
Refinement on F2Secondary atom site location: difference Fourier map
Least-squares matrix: fullHydrogen site location: inferred from neighbouring sites
R[F2 > 2σ(F2)] = 0.054H-atom parameters constrained
wR(F2) = 0.075 w = 1/[σ2(Fo2) + (0.01P)2]
where P = (Fo2 + 2Fc2)/3
S = 1.07(Δ/σ)max = 0.001
2771 reflectionsΔρmax = 0.28 e Å3
191 parametersΔρmin = 0.32 e Å3
0 restraintsExtinction correction: SHELXL97 (Sheldrick, 1997), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4
Primary atom site location: structure-invariant direct methodsExtinction coefficient: 0.00102 (11)
Crystal data top
C15H12Cl4O2V = 3136.6 (17) Å3
Mr = 366.05Z = 8
Orthorhombic, PbcnMo Kα radiation
a = 25.675 (9) ŵ = 0.75 mm1
b = 11.602 (3) ÅT = 293 K
c = 10.530 (4) Å0.23 × 0.16 × 0.13 mm
Data collection top
Stoe AED2
diffractometer
1267 reflections with I > 2σ(I)
Absorption correction: numerical
(X-RED; Stoe, 1997)
Rint = 0.061
Tmin = 0.843, Tmax = 0.9064 standard reflections every 90 min
3572 measured reflections intensity decay: <1%
2771 independent reflections
Refinement top
R[F2 > 2σ(F2)] = 0.0540 restraints
wR(F2) = 0.075H-atom parameters constrained
S = 1.07Δρmax = 0.28 e Å3
2771 reflectionsΔρmin = 0.32 e Å3
191 parameters
Special details top

Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s. planes.

Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > σ(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top
xyzUiso*/Ueq
Cl10.53872 (4)0.02927 (10)0.10785 (10)0.0478 (3)
Cl20.63226 (4)0.27957 (9)0.47048 (12)0.0512 (3)
Cl30.50709 (4)0.35165 (10)0.44769 (13)0.0644 (4)
Cl40.65296 (4)0.54535 (10)0.15129 (12)0.0560 (4)
O10.55563 (9)0.23293 (19)0.2637 (3)0.0468 (9)
H10.56230.28840.30910.070*
O20.55271 (10)0.5328 (2)0.2787 (3)0.0530 (9)
H20.52470.52420.31500.080*
C10.68558 (14)0.1512 (4)0.3862 (4)0.0319 (11)
C20.73417 (14)0.1468 (4)0.3003 (4)0.0536 (14)
H2A0.75380.07840.31880.080*
H2B0.75540.21340.31580.080*
H2C0.72360.14580.21290.080*
C30.70328 (15)0.1513 (4)0.5260 (4)0.0498 (13)
H3A0.72390.08390.54230.075*
H3B0.67330.15100.58040.075*
H3C0.72370.21900.54240.075*
C40.65264 (14)0.0458 (3)0.3535 (4)0.0269 (9)
C50.65745 (14)0.0588 (3)0.4160 (4)0.0315 (11)
H50.68220.06630.47980.038*
C60.62650 (14)0.1521 (3)0.3860 (4)0.0305 (10)
C70.58851 (14)0.1448 (3)0.2918 (4)0.0324 (11)
C80.58480 (13)0.0415 (3)0.2275 (3)0.0291 (10)
C90.61605 (13)0.0506 (3)0.2552 (4)0.0311 (10)
H90.61290.11780.20770.037*
C100.65273 (15)0.2592 (3)0.3609 (4)0.0273 (10)
C110.66843 (14)0.3491 (3)0.2842 (4)0.0348 (11)
H110.70180.34910.24980.042*
C120.63489 (16)0.4391 (3)0.2581 (4)0.0351 (10)
C130.58500 (16)0.4435 (3)0.3084 (4)0.0383 (12)
C140.57022 (14)0.3537 (4)0.3886 (4)0.0384 (12)
C150.60333 (15)0.2652 (3)0.4148 (4)0.0336 (11)
H150.59270.20730.47000.040*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
Cl10.0507 (7)0.0459 (6)0.0469 (7)0.0012 (6)0.0230 (6)0.0019 (7)
Cl20.0589 (7)0.0346 (6)0.0601 (8)0.0002 (6)0.0110 (7)0.0171 (7)
Cl30.0478 (7)0.0542 (7)0.0913 (11)0.0121 (7)0.0256 (8)0.0075 (9)
Cl40.0557 (7)0.0460 (7)0.0662 (8)0.0114 (7)0.0090 (7)0.0228 (7)
O10.0474 (17)0.0246 (14)0.068 (2)0.0036 (15)0.0077 (19)0.0030 (18)
O20.0372 (17)0.0332 (15)0.089 (3)0.0030 (16)0.0101 (18)0.001 (2)
C10.032 (2)0.029 (2)0.034 (3)0.002 (2)0.004 (2)0.000 (3)
C20.036 (3)0.044 (3)0.081 (4)0.002 (3)0.007 (3)0.004 (3)
C30.053 (3)0.039 (3)0.058 (3)0.010 (3)0.023 (3)0.002 (3)
C40.027 (2)0.024 (2)0.029 (2)0.005 (2)0.003 (2)0.000 (2)
C50.028 (2)0.037 (3)0.029 (3)0.006 (2)0.009 (2)0.004 (2)
C60.034 (2)0.026 (2)0.032 (3)0.003 (2)0.003 (2)0.008 (2)
C70.033 (2)0.025 (2)0.040 (3)0.001 (2)0.002 (2)0.006 (2)
C80.033 (2)0.030 (2)0.025 (2)0.007 (2)0.006 (2)0.002 (2)
C90.036 (2)0.026 (2)0.031 (2)0.002 (2)0.004 (2)0.003 (2)
C100.028 (2)0.026 (2)0.028 (3)0.003 (2)0.006 (2)0.002 (2)
C110.029 (2)0.033 (2)0.042 (3)0.008 (2)0.000 (2)0.003 (3)
C120.042 (3)0.024 (2)0.040 (3)0.006 (2)0.007 (2)0.004 (2)
C130.038 (3)0.027 (2)0.049 (3)0.000 (2)0.016 (2)0.004 (3)
C140.038 (2)0.028 (2)0.050 (3)0.001 (2)0.007 (2)0.002 (3)
C150.044 (3)0.025 (2)0.031 (3)0.002 (2)0.001 (2)0.001 (2)
Geometric parameters (Å, º) top
Cl1—C81.734 (4)C3—H3C0.9600
Cl2—C61.732 (4)C4—C51.386 (5)
Cl3—C141.736 (4)C4—C91.399 (5)
Cl4—C121.732 (4)C5—C61.380 (5)
O1—C71.359 (4)C5—H50.9300
O1—H10.8200C6—C71.394 (5)
O2—C131.363 (4)C7—C81.379 (5)
O2—H20.8200C8—C91.368 (5)
C1—C41.526 (5)C9—H90.9300
C1—C101.533 (5)C10—C111.380 (5)
C1—C31.540 (6)C10—C151.391 (5)
C1—C21.542 (5)C11—C121.381 (5)
C2—H2A0.9600C11—H110.9300
C2—H2B0.9600C12—C131.387 (5)
C2—H2C0.9600C13—C141.394 (5)
C3—H3A0.9600C14—C151.361 (5)
C3—H3B0.9600C15—H150.9300
C7—O1—H1109.5C7—C6—Cl2118.5 (3)
C13—O2—H2109.5O1—C7—C8120.3 (4)
C4—C1—C10108.1 (3)O1—C7—C6123.0 (4)
C4—C1—C3112.3 (4)C8—C7—C6116.8 (4)
C10—C1—C3109.2 (3)C9—C8—C7122.2 (3)
C4—C1—C2106.8 (3)C9—C8—Cl1119.4 (3)
C10—C1—C2111.7 (3)C7—C8—Cl1118.3 (3)
C3—C1—C2108.8 (3)C8—C9—C4121.4 (4)
C1—C2—H2A109.5C8—C9—H9119.3
C1—C2—H2B109.5C4—C9—H9119.3
H2A—C2—H2B109.5C11—C10—C15117.9 (4)
C1—C2—H2C109.5C11—C10—C1124.0 (4)
H2A—C2—H2C109.5C15—C10—C1118.1 (3)
H2B—C2—H2C109.5C10—C11—C12120.4 (4)
C1—C3—H3A109.5C10—C11—H11119.8
C1—C3—H3B109.5C12—C11—H11119.8
H3A—C3—H3B109.5C11—C12—C13121.9 (4)
C1—C3—H3C109.5C11—C12—Cl4120.0 (3)
H3A—C3—H3C109.5C13—C12—Cl4118.0 (3)
H3B—C3—H3C109.5O2—C13—C12120.1 (4)
C5—C4—C9116.4 (4)O2—C13—C14122.8 (4)
C5—C4—C1123.0 (3)C12—C13—C14117.1 (4)
C9—C4—C1120.5 (3)C15—C14—C13121.1 (4)
C6—C5—C4121.8 (4)C15—C14—Cl3120.0 (3)
C6—C5—H5119.1C13—C14—Cl3118.8 (3)
C4—C5—H5119.1C14—C15—C10121.6 (4)
C5—C6—C7121.2 (4)C14—C15—H15119.2
C5—C6—Cl2120.2 (3)C10—C15—H15119.2
C10—C1—C4—C5148.3 (4)C4—C1—C10—C11125.9 (4)
C3—C1—C4—C527.8 (5)C3—C1—C10—C11111.7 (4)
C2—C1—C4—C591.4 (5)C2—C1—C10—C118.7 (5)
C10—C1—C4—C932.9 (5)C4—C1—C10—C1551.7 (4)
C3—C1—C4—C9153.3 (4)C3—C1—C10—C1570.7 (4)
C2—C1—C4—C987.5 (4)C2—C1—C10—C15168.9 (4)
C9—C4—C5—C62.3 (6)C15—C10—C11—C122.8 (6)
C1—C4—C5—C6178.8 (3)C1—C10—C11—C12174.8 (4)
C4—C5—C6—C70.6 (6)C10—C11—C12—C130.8 (6)
C4—C5—C6—Cl2177.6 (3)C10—C11—C12—Cl4174.6 (3)
C5—C6—C7—O1176.8 (4)C11—C12—C13—O2178.9 (3)
Cl2—C6—C7—O10.3 (5)Cl4—C12—C13—O23.5 (5)
C5—C6—C7—C82.3 (6)C11—C12—C13—C141.1 (6)
Cl2—C6—C7—C8179.4 (3)Cl4—C12—C13—C14176.5 (3)
O1—C7—C8—C9178.0 (3)O2—C13—C14—C15179.2 (4)
C6—C7—C8—C91.0 (6)C12—C13—C14—C150.8 (6)
O1—C7—C8—Cl11.9 (5)O2—C13—C14—Cl33.1 (6)
C6—C7—C8—Cl1179.0 (3)C12—C13—C14—Cl3176.9 (3)
C7—C8—C9—C41.9 (6)C13—C14—C15—C101.3 (6)
Cl1—C8—C9—C4178.0 (3)Cl3—C14—C15—C10174.7 (3)
C5—C4—C9—C83.5 (5)C11—C10—C15—C143.1 (6)
C1—C4—C9—C8177.5 (4)C1—C10—C15—C14174.7 (4)
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
O1—H1···O2i0.822.112.723 (3)131
O2—H2···O2ii0.822.222.773 (5)125
Symmetry codes: (i) x, y1, z; (ii) x+1, y, z+1/2.
(II) 3,3',5'-Tribromo-4,4'-dihydroxy-diphenyl-dimethyl-methane top
Crystal data top
C15H13Br3O2F(000) = 3584
Mr = 464.98Dx = 2.034 Mg m3
Orthorhombic, Fdd2Mo Kα radiation, λ = 0.71073 Å
Hall symbol: F 2 -2dCell parameters from 1230 reflections
a = 19.545 (3) Åθ = 1.7–26.1°
b = 30.971 (4) ŵ = 7.97 mm1
c = 10.0335 (19) ÅT = 293 K
V = 6073.6 (16) Å3Prism, colourless
Z = 160.31 × 0.27 × 0.22 mm
Data collection top
Stoe IPDS area-detector
diffractometer
1559 independent reflections
Radiation source: fine-focus sealed tube1500 reflections with I > 2σ(I)
Graphite monochromatorRint = 0.066
Detector resolution: 6.0 pixels mm-1θmax = 25.9°, θmin = 2.4°
area detector scansh = 2323
Absorption correction: numerical
(X-RED; Stoe, 1997)
k = 3637
Tmin = 0.086, Tmax = 0.167l = 1212
10060 measured reflections
Refinement top
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.026Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.063H-atom parameters constrained
S = 1.16 w = 1/[σ2(Fo2) + (0.04P)2]
where P = (Fo2 + 2Fc2)/3
1559 reflections(Δ/σ)max = 0.001
185 parametersΔρmax = 1.50 e Å3
1 restraintΔρmin = 0.41 e Å3
Crystal data top
C15H13Br3O2V = 6073.6 (16) Å3
Mr = 464.98Z = 16
Orthorhombic, Fdd2Mo Kα radiation
a = 19.545 (3) ŵ = 7.97 mm1
b = 30.971 (4) ÅT = 293 K
c = 10.0335 (19) Å0.31 × 0.27 × 0.22 mm
Data collection top
Stoe IPDS area-detector
diffractometer
1559 independent reflections
Absorption correction: numerical
(X-RED; Stoe, 1997)
1500 reflections with I > 2σ(I)
Tmin = 0.086, Tmax = 0.167Rint = 0.066
10060 measured reflections
Refinement top
R[F2 > 2σ(F2)] = 0.0261 restraint
wR(F2) = 0.063H-atom parameters constrained
S = 1.16Δρmax = 1.50 e Å3
1559 reflectionsΔρmin = 0.41 e Å3
185 parameters
Special details top

Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s. planes.

Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > σ(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top
xyzUiso*/Ueq
Br10.04130 (3)0.251655 (17)0.20723 (6)0.01990 (14)
Br20.36051 (3)0.238662 (17)0.14632 (5)0.02046 (14)
Br30.26465 (4)0.400527 (18)0.32651 (5)0.02824 (16)
O10.3320 (2)0.31433 (13)0.3416 (4)0.0237 (9)
H10.35860.29380.34240.036*
O20.0917 (2)0.24357 (14)0.5008 (4)0.0245 (9)
H20.05240.24360.47220.037*
C10.2617 (3)0.35635 (16)0.1956 (5)0.0138 (11)
C20.2242 (3)0.39992 (16)0.2086 (6)0.0178 (12)
H2A0.17910.39750.17140.027*
H2B0.24930.42180.16160.027*
H2C0.22090.40770.30100.027*
C30.3334 (3)0.3616 (2)0.2562 (6)0.0219 (12)
H3A0.32970.37460.34270.033*
H3B0.36070.37960.19930.033*
H3C0.35460.33370.26440.033*
C40.2189 (3)0.32320 (16)0.2718 (5)0.0120 (10)
C50.1617 (3)0.30387 (15)0.2131 (5)0.0118 (9)
H50.15210.30880.12360.014*
C60.1194 (3)0.27745 (17)0.2879 (5)0.0134 (10)
C70.1320 (3)0.26925 (17)0.4211 (6)0.0157 (11)
C80.1889 (3)0.28782 (18)0.4793 (6)0.0189 (11)
H80.19860.28250.56860.023*
C90.2314 (3)0.31417 (17)0.4056 (5)0.0158 (11)
H90.26950.32630.44640.019*
C100.2724 (3)0.34332 (16)0.0512 (5)0.0110 (10)
C110.2603 (3)0.37152 (16)0.0552 (6)0.0162 (11)
H110.23900.39790.03910.019*
C120.2795 (3)0.36073 (17)0.1853 (5)0.0155 (11)
C130.3108 (3)0.32183 (18)0.2145 (5)0.0142 (10)
C140.3197 (3)0.29320 (16)0.1094 (5)0.0135 (10)
C150.3013 (3)0.30340 (17)0.0206 (5)0.0140 (10)
H150.30830.28330.08820.017*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
Br10.0136 (3)0.0242 (3)0.0219 (3)0.0077 (2)0.0028 (2)0.0005 (2)
Br20.0214 (3)0.0202 (3)0.0197 (3)0.0047 (2)0.0039 (2)0.0015 (2)
Br30.0455 (4)0.0232 (3)0.0160 (3)0.0082 (3)0.0032 (2)0.0040 (2)
O10.029 (2)0.029 (2)0.0128 (18)0.0070 (18)0.0002 (16)0.0004 (16)
O20.019 (2)0.032 (2)0.022 (2)0.0091 (19)0.0000 (18)0.0102 (17)
C10.008 (3)0.016 (2)0.018 (3)0.0016 (19)0.000 (2)0.002 (2)
C20.024 (3)0.012 (3)0.018 (3)0.001 (2)0.006 (2)0.002 (2)
C30.016 (3)0.032 (3)0.019 (3)0.012 (2)0.001 (2)0.005 (2)
C40.009 (3)0.014 (2)0.014 (2)0.0008 (19)0.0012 (19)0.0001 (19)
C50.012 (3)0.013 (2)0.010 (2)0.0000 (19)0.0000 (19)0.0004 (19)
C60.006 (3)0.016 (2)0.019 (3)0.0038 (19)0.002 (2)0.002 (2)
C70.017 (3)0.013 (2)0.017 (3)0.003 (2)0.004 (2)0.004 (2)
C80.023 (3)0.023 (3)0.011 (2)0.001 (2)0.001 (2)0.005 (2)
C90.014 (3)0.019 (3)0.014 (3)0.004 (2)0.004 (2)0.002 (2)
C100.006 (2)0.015 (2)0.012 (2)0.0034 (19)0.0007 (18)0.0011 (19)
C110.017 (3)0.015 (2)0.016 (3)0.003 (2)0.002 (2)0.001 (2)
C120.018 (3)0.015 (2)0.014 (2)0.001 (2)0.004 (2)0.004 (2)
C130.012 (3)0.022 (2)0.009 (2)0.003 (2)0.0035 (19)0.004 (2)
C140.007 (3)0.015 (2)0.018 (3)0.0018 (19)0.0023 (19)0.002 (2)
C150.010 (3)0.016 (3)0.016 (3)0.001 (2)0.000 (2)0.002 (2)
Geometric parameters (Å, º) top
Br1—C61.903 (5)C4—C91.393 (7)
Br2—C141.905 (5)C4—C51.398 (7)
Br3—C121.900 (5)C5—C61.385 (7)
O1—C131.361 (7)C5—H50.9300
O1—H10.8200C6—C71.382 (7)
O2—C71.376 (7)C7—C81.381 (8)
O2—H20.8200C8—C91.380 (8)
C1—C101.520 (7)C8—H80.9300
C1—C41.528 (7)C9—H90.9300
C1—C31.537 (7)C10—C151.393 (7)
C1—C21.541 (7)C10—C111.400 (7)
C2—H2A0.9600C11—C121.398 (8)
C2—H2B0.9600C11—H110.9300
C2—H2C0.9600C12—C131.383 (8)
C3—H3A0.9600C13—C141.388 (7)
C3—H3B0.9600C14—C151.390 (7)
C3—H3C0.9600C15—H150.9300
C13—O1—H1109.5C5—C6—Br1119.8 (4)
C7—O2—H2109.5O2—C7—C8117.1 (5)
C10—C1—C4112.0 (4)O2—C7—C6124.4 (5)
C10—C1—C3106.2 (4)C8—C7—C6118.5 (5)
C4—C1—C3111.8 (5)C9—C8—C7120.2 (5)
C10—C1—C2112.3 (4)C9—C8—H8119.9
C4—C1—C2106.6 (4)C7—C8—H8119.9
C3—C1—C2107.9 (5)C8—C9—C4122.1 (5)
C1—C2—H2A109.5C8—C9—H9119.0
C1—C2—H2B109.5C4—C9—H9119.0
H2A—C2—H2B109.5C15—C10—C11117.1 (5)
C1—C2—H2C109.5C15—C10—C1120.1 (4)
H2A—C2—H2C109.5C11—C10—C1122.6 (5)
H2B—C2—H2C109.5C12—C11—C10121.1 (5)
C1—C3—H3A109.5C12—C11—H11119.4
C1—C3—H3B109.5C10—C11—H11119.4
H3A—C3—H3B109.5C13—C12—C11121.7 (5)
C1—C3—H3C109.5C13—C12—Br3118.3 (4)
H3A—C3—H3C109.5C11—C12—Br3120.0 (4)
H3B—C3—H3C109.5O1—C13—C12118.8 (5)
C9—C4—C5117.4 (5)O1—C13—C14124.4 (5)
C9—C4—C1121.4 (5)C12—C13—C14116.8 (5)
C5—C4—C1121.0 (5)C13—C14—C15122.4 (5)
C6—C5—C4120.2 (5)C13—C14—Br2118.1 (4)
C6—C5—H5119.9C15—C14—Br2119.5 (4)
C4—C5—H5119.9C14—C15—C10120.8 (5)
C7—C6—C5121.7 (5)C14—C15—H15119.6
C7—C6—Br1118.5 (4)C10—C15—H15119.6
C10—C1—C4—C9144.8 (5)C2—C1—C10—C15175.6 (5)
C3—C1—C4—C925.8 (7)C4—C1—C10—C11130.4 (5)
C2—C1—C4—C992.0 (6)C3—C1—C10—C11107.3 (6)
C10—C1—C4—C541.3 (6)C2—C1—C10—C1110.4 (7)
C3—C1—C4—C5160.4 (5)C15—C10—C11—C123.1 (8)
C2—C1—C4—C581.8 (6)C1—C10—C11—C12171.1 (5)
C9—C4—C5—C61.0 (7)C10—C11—C12—C130.4 (9)
C1—C4—C5—C6173.1 (5)C10—C11—C12—Br3178.1 (4)
C4—C5—C6—C70.2 (8)C11—C12—C13—O1176.1 (5)
C4—C5—C6—Br1179.6 (4)Br3—C12—C13—O12.4 (7)
C5—C6—C7—O2179.5 (5)C11—C12—C13—C142.6 (8)
Br1—C6—C7—O20.2 (7)Br3—C12—C13—C14178.8 (4)
C5—C6—C7—C80.5 (8)O1—C13—C14—C15175.6 (5)
Br1—C6—C7—C8179.7 (4)C12—C13—C14—C153.0 (8)
O2—C7—C8—C9179.6 (5)O1—C13—C14—Br22.9 (7)
C6—C7—C8—C90.5 (8)C12—C13—C14—Br2178.4 (4)
C7—C8—C9—C40.3 (9)C13—C14—C15—C100.4 (8)
C5—C4—C9—C81.0 (8)Br2—C14—C15—C10178.9 (4)
C1—C4—C9—C8173.0 (5)C11—C10—C15—C142.7 (8)
C4—C1—C10—C1555.7 (7)C1—C10—C15—C14171.6 (5)
C3—C1—C10—C1566.7 (6)
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
O1—H1···O2i0.822.182.818 (5)134
Symmetry code: (i) x+1/2, y+1/2, z1.
(III) 3,3',5,5'-Tetrabromo-4,4'-dihydroxy-diphenyl-dimethyl-methane top
Crystal data top
C15H12Br4O2Dx = 2.158 Mg m3
Mr = 543.89Mo Kα radiation, λ = 0.71073 Å
Tetragonal, P43212Cell parameters from 1720 reflections
Hall symbol: P 41n 2abwθ = 1.7–26.1°
a = 12.0038 (16) ŵ = 9.62 mm1
c = 11.618 (3) ÅT = 293 K
V = 1674.1 (5) Å3Prism, colourless
Z = 40.15 × 0.14 × 0.12 mm
F(000) = 1032
Data collection top
Stoe IPDS area-detector
diffractometer
1625 independent reflections
Radiation source: fine-focus sealed tube915 reflections with I > 2σ(I)
Graphite monochromatorRint = 0.171
Detector resolution: 6.0 pixels mm-1θmax = 25.9°, θmin = 2.4°
area detector scansh = 1414
Absorption correction: numerical
(X-RED; Stoe, 1997)
k = 1414
Tmin = 0.236, Tmax = 0.302l = 1414
13032 measured reflections
Refinement top
Refinement on F2Secondary atom site location: difference Fourier map
Least-squares matrix: fullHydrogen site location: inferred from neighbouring sites
R[F2 > 2σ(F2)] = 0.039H-atom parameters constrained
wR(F2) = 0.060 w = 1/[σ2(Fo2) + (0.01P)2]
where P = (Fo2 + 2Fc2)/3
S = 0.81(Δ/σ)max = 0.001
1625 reflectionsΔρmax = 0.42 e Å3
98 parametersΔρmin = 0.39 e Å3
26 restraintsAbsolute structure: Flack (1983)
Primary atom site location: structure-invariant direct methodsAbsolute structure parameter: 0.03 (3)
Crystal data top
C15H12Br4O2Z = 4
Mr = 543.89Mo Kα radiation
Tetragonal, P43212µ = 9.62 mm1
a = 12.0038 (16) ÅT = 293 K
c = 11.618 (3) Å0.15 × 0.14 × 0.12 mm
V = 1674.1 (5) Å3
Data collection top
Stoe IPDS area-detector
diffractometer
1625 independent reflections
Absorption correction: numerical
(X-RED; Stoe, 1997)
915 reflections with I > 2σ(I)
Tmin = 0.236, Tmax = 0.302Rint = 0.171
13032 measured reflections
Refinement top
R[F2 > 2σ(F2)] = 0.039H-atom parameters constrained
wR(F2) = 0.060Δρmax = 0.42 e Å3
S = 0.81Δρmin = 0.39 e Å3
1625 reflectionsAbsolute structure: Flack (1983)
98 parametersAbsolute structure parameter: 0.03 (3)
26 restraints
Special details top

Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s. planes.

Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > σ(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top
xyzUiso*/Ueq
Br10.14857 (8)0.55894 (7)0.18353 (8)0.0590 (3)
Br20.38816 (7)0.15045 (7)0.18750 (8)0.0533 (3)
C10.4670 (6)0.4670 (6)0.50000.035 (3)
C20.5901 (6)0.4518 (7)0.4685 (7)0.048 (3)
H2A0.60470.37440.45400.073*
H2B0.63580.47700.53110.073*
H2C0.60680.49440.40070.073*
C30.3971 (6)0.4312 (6)0.3961 (6)0.0286 (19)
C40.3171 (6)0.4986 (6)0.3447 (7)0.033 (2)
H40.30400.56890.37540.039*
C50.2560 (6)0.4648 (7)0.2491 (6)0.0326 (19)
C60.2740 (6)0.3579 (8)0.2021 (7)0.038 (2)
C70.3546 (7)0.2887 (6)0.2513 (6)0.0328 (19)
C80.4104 (6)0.3260 (6)0.3479 (6)0.033 (2)
H80.46040.27740.38300.040*
O10.2159 (6)0.3255 (5)0.1073 (5)0.0598 (18)
H10.19050.26290.11770.090*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
Br10.0506 (6)0.0730 (7)0.0534 (6)0.0257 (6)0.0076 (6)0.0146 (6)
Br20.0608 (6)0.0385 (5)0.0606 (6)0.0011 (5)0.0017 (5)0.0083 (5)
C10.032 (4)0.032 (4)0.042 (7)0.003 (7)0.001 (4)0.001 (4)
C20.045 (6)0.052 (6)0.048 (6)0.009 (5)0.003 (5)0.010 (5)
C30.032 (4)0.028 (4)0.026 (5)0.002 (4)0.004 (3)0.010 (3)
C40.037 (5)0.028 (4)0.033 (5)0.006 (4)0.010 (4)0.003 (4)
C50.039 (5)0.029 (5)0.029 (5)0.001 (4)0.008 (4)0.008 (4)
C60.027 (4)0.059 (5)0.028 (5)0.010 (4)0.005 (4)0.004 (5)
C70.027 (4)0.035 (5)0.036 (5)0.000 (4)0.007 (4)0.007 (4)
C80.035 (5)0.026 (5)0.038 (5)0.009 (4)0.000 (4)0.003 (4)
O10.062 (4)0.069 (6)0.048 (4)0.016 (4)0.019 (3)0.001 (3)
Geometric parameters (Å, º) top
Br1—C51.877 (7)C3—C81.391 (10)
Br2—C71.862 (7)C4—C51.391 (10)
C1—C31.532 (9)C4—H40.9300
C1—C3i1.532 (9)C5—C61.412 (11)
C1—C2i1.533 (9)C6—O11.360 (9)
C1—C21.533 (9)C6—C71.397 (10)
C2—H2A0.9600C7—C81.381 (9)
C2—H2B0.9600C8—H80.9300
C2—H2C0.9600O1—H10.8200
C3—C41.389 (9)
C3—C1—C3i108.3 (8)C3—C4—H4118.8
C3—C1—C2i113.1 (4)C5—C4—H4118.8
C3i—C1—C2i107.9 (5)C4—C5—C6119.6 (7)
C3—C1—C2107.9 (5)C4—C5—Br1120.7 (6)
C3i—C1—C2113.1 (4)C6—C5—Br1119.7 (6)
C2i—C1—C2106.6 (10)O1—C6—C7121.1 (8)
C1—C2—H2A109.5O1—C6—C5119.6 (8)
C1—C2—H2B109.5C7—C6—C5119.2 (7)
H2A—C2—H2B109.5C8—C7—C6118.4 (7)
C1—C2—H2C109.5C8—C7—Br2120.5 (6)
H2A—C2—H2C109.5C6—C7—Br2121.1 (6)
H2B—C2—H2C109.5C7—C8—C3124.4 (7)
C4—C3—C8115.8 (7)C7—C8—H8117.8
C4—C3—C1123.6 (6)C3—C8—H8117.8
C8—C3—C1120.5 (6)C6—O1—H1109.5
C3—C4—C5122.5 (7)
C3i—C1—C3—C4111.5 (8)Br1—C5—C6—O12.1 (10)
C2i—C1—C3—C48.0 (10)C4—C5—C6—C71.2 (11)
C2—C1—C3—C4125.7 (7)Br1—C5—C6—C7179.7 (5)
C3i—C1—C3—C867.9 (6)O1—C6—C7—C8179.7 (7)
C2i—C1—C3—C8172.6 (8)C5—C6—C7—C82.8 (11)
C2—C1—C3—C854.9 (9)O1—C6—C7—Br21.4 (10)
C8—C3—C4—C51.7 (11)C5—C6—C7—Br2176.2 (6)
C1—C3—C4—C5178.9 (7)C6—C7—C8—C34.2 (12)
C3—C4—C5—C60.6 (11)Br2—C7—C8—C3174.8 (6)
C3—C4—C5—Br1179.7 (5)C4—C3—C8—C73.5 (11)
C4—C5—C6—O1178.7 (7)C1—C3—C8—C7177.1 (7)
Symmetry code: (i) y, x, z+1.
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
O1—H1···O1ii0.823.133.11 (1)81
Symmetry code: (ii) y, x, z.

Experimental details

(I)(II)(III)
Crystal data
Chemical formulaC15H12Cl4O2C15H13Br3O2C15H12Br4O2
Mr366.05464.98543.89
Crystal system, space groupOrthorhombic, PbcnOrthorhombic, Fdd2Tetragonal, P43212
Temperature (K)293293293
a, b, c (Å)25.675 (9), 11.602 (3), 10.530 (4)19.545 (3), 30.971 (4), 10.0335 (19)12.0038 (16), 12.0038 (16), 11.618 (3)
α, β, γ (°)90, 90, 9090, 90, 9090, 90, 90
V3)3136.6 (17)6073.6 (16)1674.1 (5)
Z8164
Radiation typeMo KαMo KαMo Kα
µ (mm1)0.757.979.62
Crystal size (mm)0.23 × 0.16 × 0.130.31 × 0.27 × 0.220.15 × 0.14 × 0.12
Data collection
DiffractometerStoe AED2
diffractometer
Stoe IPDS area-detector
diffractometer
Stoe IPDS area-detector
diffractometer
Absorption correctionNumerical
(X-RED; Stoe, 1997)
Numerical
(X-RED; Stoe, 1997)
Numerical
(X-RED; Stoe, 1997)
Tmin, Tmax0.843, 0.9060.086, 0.1670.236, 0.302
No. of measured, independent and
observed [I > 2σ(I)] reflections
3572, 2771, 1267 10060, 1559, 1500 13032, 1625, 915
Rint0.0610.0660.171
(sin θ/λ)max1)0.5960.6140.614
Refinement
R[F2 > 2σ(F2)], wR(F2), S 0.054, 0.075, 1.07 0.026, 0.063, 1.16 0.039, 0.060, 0.81
No. of reflections277115591625
No. of parameters19118598
No. of restraints0126
H-atom treatmentH-atom parameters constrainedH-atom parameters constrainedH-atom parameters constrained
Δρmax, Δρmin (e Å3)0.28, 0.321.50, 0.410.42, 0.39
Absolute structure??Flack (1983)
Absolute structure parameter??0.03 (3)

Computer programs: DIF4 (Stoe, 1988), EXPOSE (Stoe, 1997), DIF4, CELL (Stoe, 1997), REDU4 (Stoe, 1988), INTEGRATE (Stoe, 1997), SHELXS97 (Sheldrick, 1990), SHELXL97 (Sheldrick, 1997), DIAMOND (Bergerhoff, 1996).

Selected geometric parameters (Å, º) for (I) top
Cl1—C81.734 (4)Cl3—C141.736 (4)
Cl2—C61.732 (4)Cl4—C121.732 (4)
C4—C1—C10108.1 (3)C9—C4—C1120.5 (3)
C4—C1—C3112.3 (4)O1—C7—C8120.3 (4)
C10—C1—C3109.2 (3)O1—C7—C6123.0 (4)
C4—C1—C2106.8 (3)C11—C10—C15117.9 (4)
C10—C1—C2111.7 (3)C11—C10—C1124.0 (4)
C3—C1—C2108.8 (3)C15—C10—C1118.1 (3)
C5—C4—C9116.4 (4)O2—C13—C12120.1 (4)
C5—C4—C1123.0 (3)O2—C13—C14122.8 (4)
C10—C1—C4—C5148.3 (4)C2—C1—C4—C987.5 (4)
C3—C1—C4—C527.8 (5)C9—C4—C5—C62.3 (6)
C2—C1—C4—C591.4 (5)C1—C4—C5—C6178.8 (3)
C10—C1—C4—C932.9 (5)C15—C10—C11—C122.8 (6)
C3—C1—C4—C9153.3 (4)C1—C10—C11—C12174.8 (4)
Hydrogen-bond geometry (Å, º) for (I) top
D—H···AD—HH···AD···AD—H···A
O1—H1···O2i0.822.1132.723 (3)131
O2—H2···O2ii0.822.2212.773 (5)125
Symmetry codes: (i) x, y1, z; (ii) x+1, y, z+1/2.
Selected geometric parameters (Å, º) for (II) top
Br1—C61.903 (5)C1—C41.528 (7)
Br2—C141.905 (5)C1—C31.537 (7)
Br3—C121.900 (5)C1—C21.541 (7)
C1—C101.520 (7)
C10—C1—C4112.0 (4)C5—C4—C1121.0 (5)
C10—C1—C3106.2 (4)O2—C7—C8117.1 (5)
C4—C1—C3111.8 (5)O2—C7—C6124.4 (5)
C10—C1—C2112.3 (4)C15—C10—C11117.1 (5)
C4—C1—C2106.6 (4)C15—C10—C1120.1 (4)
C3—C1—C2107.9 (5)C11—C10—C1122.6 (5)
C9—C4—C5117.4 (5)O1—C13—C12118.8 (5)
C9—C4—C1121.4 (5)O1—C13—C14124.4 (5)
C10—C1—C4—C9144.8 (5)C2—C1—C4—C581.8 (6)
C3—C1—C4—C925.8 (7)C9—C4—C5—C61.0 (7)
C2—C1—C4—C992.0 (6)C1—C4—C5—C6173.1 (5)
C10—C1—C4—C541.3 (6)C15—C10—C11—C123.1 (8)
C3—C1—C4—C5160.4 (5)C1—C10—C11—C12171.1 (5)
Hydrogen-bond geometry (Å, º) for (II) top
D—H···AD—HH···AD···AD—H···A
O1—H1···O2i0.822.182.818 (5)134
Symmetry code: (i) x+1/2, y+1/2, z1.
Selected geometric parameters (Å, º) for (III) top
Br1—C51.877 (7)C1—C31.532 (9)
Br2—C71.862 (7)C1—C21.533 (9)
C3—C1—C3i108.3 (8)C4—C3—C1123.6 (6)
C3—C1—C2i113.1 (4)C8—C3—C1120.5 (6)
C3—C1—C2107.9 (5)O1—C6—C7121.1 (8)
C2i—C1—C2106.6 (10)O1—C6—C5119.6 (8)
C4—C3—C8115.8 (7)
C3i—C1—C3—C4111.5 (8)C2i—C1—C3—C8172.6 (8)
C2i—C1—C3—C48.0 (10)C2—C1—C3—C854.9 (9)
C2—C1—C3—C4125.7 (7)C8—C3—C4—C51.7 (11)
C3i—C1—C3—C867.9 (6)C1—C3—C4—C5178.9 (7)
Symmetry code: (i) y, x, z+1.
Hydrogen-bond geometry (Å, º) for (III) top
D—H···AD—HH···AD···AD—H···A
O1—H1···O1ii0.823.133.11 (1)81
Symmetry code: (ii) y, x, z.
 

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