Download citation
Download citation
link to html
The title sesquiterpenoid quinone compound, C15H16O4, was isolated from Thespesia populnea. There are two independent mol­ecules (A and B) with identical conformations in the asymmetric unit. In both mol­ecules, the dihydro­pyran rings adopt envelope conformations, with the methyl­ene C as the flap atom, whereas the cyclo­henene rings are in screw-boat conformations. Intra­molecular O—H...O hydrogen bonds generate S(5) ring motifs in both mol­ecules. The mol­ecules are linked into chains along the a axis through weak C—H...O inter­molecular inter­actions. The crystal structure is stabilized by intra­molecular O—H...O hydrogen bonds, and weak C—H...O intra- and inter­molecular inter­actions. C—H...π inter­actions involving the cyclo­hexa­diene ring are observed in the crystal structure.

Supporting information

cif

Crystallographic Information File (CIF) https://doi.org/10.1107/S1600536807020193/sj2300sup1.cif
Contains datablocks global, I

hkl

Structure factor file (CIF format) https://doi.org/10.1107/S1600536807020193/sj2300Isup2.hkl
Contains datablock I

CCDC reference: 648224

Key indicators

  • Single-crystal X-ray study
  • T = 100 K
  • Mean [sigma](C-C) = 0.003 Å
  • R factor = 0.045
  • wR factor = 0.113
  • Data-to-parameter ratio = 10.3

checkCIF/PLATON results

No syntax errors found



Alert level C PLAT066_ALERT_1_C Predicted and Reported Transmissions Identical . ? PLAT250_ALERT_2_C Large U3/U1 Ratio for Average U(i,j) Tensor .... 2.06 PLAT380_ALERT_4_C Check Incorrectly? Oriented X(sp2)-Methyl Moiety C14A PLAT720_ALERT_4_C Number of Unusual/Non-Standard Label(s) ........ 8
Alert level G REFLT03_ALERT_4_G Please check that the estimate of the number of Friedel pairs is correct. If it is not, please give the correct count in the _publ_section_exptl_refinement section of the submitted CIF. From the CIF: _diffrn_reflns_theta_max 28.00 From the CIF: _reflns_number_total 3593 Count of symmetry unique reflns 3594 Completeness (_total/calc) 99.97% TEST3: Check Friedels for noncentro structure Estimate of Friedel pairs measured 0 Fraction of Friedel pairs measured 0.000 Are heavy atom types Z>Si present no PLAT791_ALERT_1_G Confirm the Absolute Configuration of C7A = . S PLAT791_ALERT_1_G Confirm the Absolute Configuration of C7B = . S PLAT791_ALERT_1_G Confirm the Absolute Configuration of C11A = . S PLAT791_ALERT_1_G Confirm the Absolute Configuration of C11B = . S
0 ALERT level A = In general: serious problem 0 ALERT level B = Potentially serious problem 4 ALERT level C = Check and explain 5 ALERT level G = General alerts; check 5 ALERT type 1 CIF construction/syntax error, inconsistent or missing data 1 ALERT type 2 Indicator that the structure model may be wrong or deficient 0 ALERT type 3 Indicator that the structure quality may be low 3 ALERT type 4 Improvement, methodology, query or suggestion 0 ALERT type 5 Informative message, check

Comment top

The heartwood of Thespesia populnea is a rich source of highly oxidized sesquiterpenes containing a cadinane skeleton (Milbrodt et al., 1997). Some possess significant pharmacological effects such as cytotoxicity (Tiew et al., 2002; Duh et al., 2004; Wang et al., 2004) and antifungal activity (Silva et al., 2006). Previously we reported the stucture of mansonone E, a sesquiterpene isolated from T. populnea (Fun et al., 2007). In continuation of our study of bioactive compounds from T. populnea, (Po-ta-lea in Thai) a plant in the malvaceae, we report the structure of the title compound, (I) isolated from the heartwood of T. populnea collected from the Suratthani province in Thailand. Biological activity tests show that (I) is inactive against bacteria and shows an IC50 > 5 µg/ml) against MCF-7 (breast), Hela (cervical), HT-29 (colon) and KB (oral cavity) cancer cell lines.

Compound (I) crystallizes with two conformationally similar independent molecules (A and B) per asymmetric unit (Fig. 1). The bond lengths and angles in (I) are normal (Allen et al., 1987) and comparable to those in a related structure (Fun et al., 2007). In both molecules, the cyclohexadiene rings (C1—C6) are essentially planar with maximum deviations of -0.037 (3) for C1A and 0.036 (3) Å for atom C4B. The dihydropyran rings adopt envelope conformations, with atom C12 displaced from the C1/C2/C10/C11/O1 plane by -0.340 (3)Å and -0.315 (3) Å for A and B, respectively. The puckering parameters (Cremer & Pople, 1975) are Q = 0.473 (3) Å, θ = 122.7 (3)° and φ = 121.6 (3)° for A and Q = 0.439 (2) Å, θ = 124.0 (3)° and φ = 119.3 (4)° for B. Both the cycloxene rings adopt screw boat conformations with puckering parameters Q = 0.434 (3) Å, θ = 57.4 (4)° and φ = 150.4 (4)° for A and Q = 0.416 (2) Å, θ = 54.1 (4)° and φ = 154.9 (4)° for B. In both molecules, the methyl group at C3 lies in the cyclohexadiene ring plane whereas the C7 and C11 methyl groups are axial to the cyclohexene and dihydropyran rings (Fig. 1).

In the crystal intramolecular O3A—H3AA···O2A and O3B—H3BA···O2B hydrogen bonds generate S(5) ring motifs with S(10) motifs formed by O3A—H3AA···O2B and O3B—H3BA···O2A interactions (Bernstein et al., 1995). These link the two molecules into dimers which form chains along a through weak intermolecular C—H···O interactions (Fig. 2, Table 1). The crystal is further stabilized by C—H···π interactions; Cg1 is the centroid of C1B–C6B (Table 1).

Related literature top

For details of the sources and biological activities of related sesquiterpenes, see Tiew et al. (2002); Duh et al. (2004); Wang et al. (2004); Silva et al. (2006). For related literature on hydrogen-bond motifs, see Bernstein et al. (1995), and on values of bond lengths and angles, see Allen et al. (1987). For a related structure, see Fun et al., (2007). For related literature, see: Cremer & Pople (1975); Milbrodt et al. (1997).

Experimental top

Air-dried heartwood of T. populnea (2.1 kg) was extracted with CH2Cl2 over a period of 5 d at room temperature. The CH2Cl2 extract was evaporated under reduced pressure to yield a orange-brown gum (37.5 g), which was subjected to silica gel column chromatography using CH2Cl2 as eluent to afford 8 fractions (F1—F8). Fraction F7 was subjected to repeated column chromatography with acetone-CH2Cl2 as eluents for gradient elution to afford the title compound (I). Purple needle-shaped single crystals of (I) were obtained by recrystallization from MeOH-CH2Cl2 (3:7 v/v) after several days (m.p. 532–534 K).

Refinement top

In the absence of significant anomalous scattering effects, 2730 Friedel pairs were averaged. All H atoms were positioned geometrically and allowed to ride on their parent atoms, with an O—H distance of 0.82 Å and C—H distances in the range 0.93–0.96 Å. The Uiso values were constrained to be 1.5Ueq of the carrier atom for methyl H atoms and 1.2Ueq for the remaining H atoms. A rotating group model was used for the methyl groups.

Structure description top

The heartwood of Thespesia populnea is a rich source of highly oxidized sesquiterpenes containing a cadinane skeleton (Milbrodt et al., 1997). Some possess significant pharmacological effects such as cytotoxicity (Tiew et al., 2002; Duh et al., 2004; Wang et al., 2004) and antifungal activity (Silva et al., 2006). Previously we reported the stucture of mansonone E, a sesquiterpene isolated from T. populnea (Fun et al., 2007). In continuation of our study of bioactive compounds from T. populnea, (Po-ta-lea in Thai) a plant in the malvaceae, we report the structure of the title compound, (I) isolated from the heartwood of T. populnea collected from the Suratthani province in Thailand. Biological activity tests show that (I) is inactive against bacteria and shows an IC50 > 5 µg/ml) against MCF-7 (breast), Hela (cervical), HT-29 (colon) and KB (oral cavity) cancer cell lines.

Compound (I) crystallizes with two conformationally similar independent molecules (A and B) per asymmetric unit (Fig. 1). The bond lengths and angles in (I) are normal (Allen et al., 1987) and comparable to those in a related structure (Fun et al., 2007). In both molecules, the cyclohexadiene rings (C1—C6) are essentially planar with maximum deviations of -0.037 (3) for C1A and 0.036 (3) Å for atom C4B. The dihydropyran rings adopt envelope conformations, with atom C12 displaced from the C1/C2/C10/C11/O1 plane by -0.340 (3)Å and -0.315 (3) Å for A and B, respectively. The puckering parameters (Cremer & Pople, 1975) are Q = 0.473 (3) Å, θ = 122.7 (3)° and φ = 121.6 (3)° for A and Q = 0.439 (2) Å, θ = 124.0 (3)° and φ = 119.3 (4)° for B. Both the cycloxene rings adopt screw boat conformations with puckering parameters Q = 0.434 (3) Å, θ = 57.4 (4)° and φ = 150.4 (4)° for A and Q = 0.416 (2) Å, θ = 54.1 (4)° and φ = 154.9 (4)° for B. In both molecules, the methyl group at C3 lies in the cyclohexadiene ring plane whereas the C7 and C11 methyl groups are axial to the cyclohexene and dihydropyran rings (Fig. 1).

In the crystal intramolecular O3A—H3AA···O2A and O3B—H3BA···O2B hydrogen bonds generate S(5) ring motifs with S(10) motifs formed by O3A—H3AA···O2B and O3B—H3BA···O2A interactions (Bernstein et al., 1995). These link the two molecules into dimers which form chains along a through weak intermolecular C—H···O interactions (Fig. 2, Table 1). The crystal is further stabilized by C—H···π interactions; Cg1 is the centroid of C1B–C6B (Table 1).

For details of the sources and biological activities of related sesquiterpenes, see Tiew et al. (2002); Duh et al. (2004); Wang et al. (2004); Silva et al. (2006). For related literature on hydrogen-bond motifs, see Bernstein et al. (1995), and on values of bond lengths and angles, see Allen et al. (1987). For a related structure, see Fun et al., (2007). For related literature, see: Cremer & Pople (1975); Milbrodt et al. (1997).

Computing details top

Data collection: APEX2 (Bruker, 2005); cell refinement: APEX2; data reduction: SAINT (Bruker, 2005); program(s) used to solve structure: SHELXTL (Sheldrick, 1998); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL and PLATON (Spek, 2003).

Figures top
[Figure 1] Fig. 1. The asymmetric unit of the title compound, showing 50% probability displacement ellipsoids and the atomic numbering scheme. Hydrogen bonds are shown as dashed lines.
[Figure 2] Fig. 2. The crystal packing of (I). Hydrogen bonds are shown as dashed lines.
7-Hydroxy-3,6,9-trimethyl-2,3,5,6-tetrahydronaphtho[1,8 - b,c]pyran-4,8-dione top
Crystal data top
C15H16O4Dx = 1.321 Mg m3
Mr = 260.28Melting point = 532–534 K
Orthorhombic, P212121Mo Kα radiation, λ = 0.71073 Å
Hall symbol: P 2ac 2abCell parameters from 3593 reflections
a = 8.5390 (4) Åθ = 1.3–28.0°
b = 10.0913 (5) ŵ = 0.10 mm1
c = 30.3769 (14) ÅT = 100 K
V = 2617.6 (2) Å3Needle, purple
Z = 80.51 × 0.19 × 0.11 mm
F(000) = 1104
Data collection top
Bruker SMART APEX2 CCD area-detector
diffractometer
3593 independent reflections
Radiation source: fine-focus sealed tube3004 reflections with I > 2σ(I)
Graphite monochromatorRint = 0.067
Detector resolution: 8.33 pixels mm-1θmax = 28.0°, θmin = 1.3°
ω scansh = 1111
Absorption correction: multi-scan
(SADABS; Bruker, 2005)
k = 1213
Tmin = 0.953, Tmax = 0.990l = 3940
28942 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)] = 0.045Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.113H-atom parameters constrained
S = 1.03 w = 1/[σ2(Fo2) + (0.0619P)2 + 0.359P]
where P = (Fo2 + 2Fc2)/3
3593 reflections(Δ/σ)max < 0.001
349 parametersΔρmax = 0.30 e Å3
0 restraintsΔρmin = 0.22 e Å3
Crystal data top
C15H16O4V = 2617.6 (2) Å3
Mr = 260.28Z = 8
Orthorhombic, P212121Mo Kα radiation
a = 8.5390 (4) ŵ = 0.10 mm1
b = 10.0913 (5) ÅT = 100 K
c = 30.3769 (14) Å0.51 × 0.19 × 0.11 mm
Data collection top
Bruker SMART APEX2 CCD area-detector
diffractometer
3593 independent reflections
Absorption correction: multi-scan
(SADABS; Bruker, 2005)
3004 reflections with I > 2σ(I)
Tmin = 0.953, Tmax = 0.990Rint = 0.067
28942 measured reflections
Refinement top
R[F2 > 2σ(F2)] = 0.0450 restraints
wR(F2) = 0.113H-atom parameters constrained
S = 1.03Δρmax = 0.30 e Å3
3593 reflectionsΔρmin = 0.22 e Å3
349 parameters
Special details top

Experimental. The data was collected with the Oxford Cyrosystem Cobra low-temperature attachment.

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
O1A0.7493 (2)0.62788 (16)0.10729 (5)0.0247 (4)
O2A0.8398 (2)0.77230 (17)0.25156 (6)0.0279 (4)
O3A0.7968 (2)0.52747 (17)0.28561 (5)0.0277 (4)
H3AA0.78900.59960.29790.042*
O4A0.7326 (3)0.13687 (19)0.12509 (6)0.0436 (6)
C1A0.7573 (3)0.4667 (2)0.16700 (7)0.0194 (5)
C2A0.7636 (3)0.6047 (2)0.15122 (7)0.0198 (5)
C3A0.7918 (3)0.7077 (2)0.17842 (8)0.0214 (5)
C4A0.8115 (3)0.6818 (2)0.22519 (8)0.0212 (5)
C5A0.7907 (3)0.5448 (2)0.24131 (7)0.0217 (5)
C6A0.7665 (3)0.4418 (2)0.21395 (7)0.0201 (5)
C7A0.7381 (3)0.3024 (2)0.23054 (8)0.0244 (5)
H7AA0.79080.29220.25900.029*
C8A0.8087 (3)0.2023 (3)0.19815 (8)0.0296 (6)
H8AA0.92200.20790.19950.035*
H8AB0.77870.11350.20700.035*
C9A0.7560 (3)0.2260 (3)0.15131 (8)0.0286 (6)
C10A0.7422 (3)0.3664 (2)0.13727 (8)0.0207 (5)
C11A0.7211 (3)0.3933 (2)0.08885 (8)0.0228 (5)
H11A0.64460.33010.07710.027*
C12A0.6554 (3)0.5315 (3)0.08381 (8)0.0262 (5)
H12A0.65220.55470.05280.031*
H12B0.54900.53350.09500.031*
C13A0.8749 (3)0.3761 (3)0.06367 (8)0.0304 (6)
H13A0.91860.29060.07010.046*
H13B0.94730.44390.07250.046*
H13C0.85530.38300.03260.046*
C14A0.7978 (3)0.8499 (2)0.16384 (8)0.0265 (5)
H14A0.78260.85450.13260.040*
H14B0.89790.88700.17120.040*
H14C0.71660.89910.17840.040*
C15A0.5626 (3)0.2783 (3)0.23716 (9)0.0338 (6)
H15A0.52100.34430.25670.051*
H15B0.54680.19190.24970.051*
H15C0.51000.28350.20930.051*
O1B0.7010 (2)0.87759 (16)0.49008 (5)0.0273 (4)
O2B0.7770 (3)0.73126 (18)0.34594 (6)0.0386 (5)
O3B0.8073 (2)0.97874 (18)0.31392 (5)0.0291 (4)
H3BA0.81320.90620.30190.044*
O4B0.7987 (2)1.36536 (17)0.47624 (6)0.0274 (4)
C1B0.7519 (3)1.0400 (2)0.43210 (7)0.0189 (5)
C2B0.7216 (3)0.9027 (2)0.44669 (8)0.0218 (5)
C3B0.7241 (3)0.7987 (2)0.41856 (8)0.0254 (5)
C4B0.7622 (3)0.8228 (2)0.37285 (8)0.0258 (6)
C5B0.7823 (3)0.9617 (2)0.35765 (7)0.0226 (5)
C6B0.7778 (3)1.0649 (2)0.38527 (8)0.0194 (5)
C7B0.7933 (3)1.2061 (2)0.36968 (8)0.0217 (5)
H7BA0.85751.20620.34290.026*
C8B0.8782 (3)1.2897 (2)0.40482 (7)0.0237 (5)
H8BA0.98761.26400.40570.028*
H8BB0.87331.38240.39650.028*
C9B0.8086 (3)1.2736 (2)0.44997 (8)0.0219 (5)
C10B0.7607 (3)1.1374 (2)0.46290 (8)0.0200 (5)
C11B0.7364 (3)1.1094 (2)0.51100 (8)0.0219 (5)
H11B0.67781.18370.52370.026*
C12B0.6393 (3)0.9857 (2)0.51640 (8)0.0260 (5)
H12C0.63840.95980.54720.031*
H12D0.53231.00380.50760.031*
C13B0.8948 (3)1.1007 (3)0.53461 (8)0.0304 (6)
H13D0.94931.18340.53160.046*
H13E0.95621.03110.52170.046*
H13F0.87801.08210.56520.046*
C14B0.6971 (5)0.6582 (3)0.43310 (9)0.0420 (8)
H14D0.62670.65740.45770.063*
H14E0.79500.61900.44150.063*
H14F0.65220.60850.40930.063*
C15B0.6336 (3)1.2662 (3)0.35835 (8)0.0275 (6)
H15E0.58321.21270.33640.041*
H15F0.64791.35440.34720.041*
H15G0.56971.26910.38430.041*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
O1A0.0370 (9)0.0204 (8)0.0166 (8)0.0034 (7)0.0031 (7)0.0001 (7)
O2A0.0407 (10)0.0216 (9)0.0213 (9)0.0030 (8)0.0021 (8)0.0051 (8)
O3A0.0459 (10)0.0225 (9)0.0149 (8)0.0034 (8)0.0008 (8)0.0041 (7)
O4A0.0871 (17)0.0196 (9)0.0242 (10)0.0047 (11)0.0080 (10)0.0051 (8)
C1A0.0231 (11)0.0168 (11)0.0181 (11)0.0006 (9)0.0002 (9)0.0006 (10)
C2A0.0243 (11)0.0196 (12)0.0155 (11)0.0007 (9)0.0016 (9)0.0005 (9)
C3A0.0256 (11)0.0185 (12)0.0202 (11)0.0008 (9)0.0028 (10)0.0009 (10)
C4A0.0243 (11)0.0190 (12)0.0202 (12)0.0009 (9)0.0026 (10)0.0043 (10)
C5A0.0261 (11)0.0240 (13)0.0149 (11)0.0023 (10)0.0001 (9)0.0004 (10)
C6A0.0249 (11)0.0193 (12)0.0161 (11)0.0001 (9)0.0004 (9)0.0002 (9)
C7A0.0370 (13)0.0195 (12)0.0168 (11)0.0015 (10)0.0030 (10)0.0011 (10)
C8A0.0482 (15)0.0182 (12)0.0224 (13)0.0002 (11)0.0051 (12)0.0003 (11)
C9A0.0430 (14)0.0206 (13)0.0221 (12)0.0006 (11)0.0015 (11)0.0017 (11)
C10A0.0256 (11)0.0187 (12)0.0177 (11)0.0019 (10)0.0007 (9)0.0003 (10)
C11A0.0298 (12)0.0216 (12)0.0169 (11)0.0048 (10)0.0011 (9)0.0057 (10)
C12A0.0316 (12)0.0283 (13)0.0187 (12)0.0018 (11)0.0053 (10)0.0009 (11)
C13A0.0345 (14)0.0336 (15)0.0230 (13)0.0043 (12)0.0038 (10)0.0080 (12)
C14A0.0380 (13)0.0191 (12)0.0225 (12)0.0003 (10)0.0037 (11)0.0004 (11)
C15A0.0403 (14)0.0339 (16)0.0272 (14)0.0122 (12)0.0014 (11)0.0032 (13)
O1B0.0467 (10)0.0195 (9)0.0158 (8)0.0016 (8)0.0045 (8)0.0000 (7)
O2B0.0733 (14)0.0223 (10)0.0201 (9)0.0025 (10)0.0051 (10)0.0060 (8)
O3B0.0487 (11)0.0227 (9)0.0158 (8)0.0002 (9)0.0033 (8)0.0037 (7)
O4B0.0365 (9)0.0221 (9)0.0234 (9)0.0015 (8)0.0008 (8)0.0042 (8)
C1B0.0210 (10)0.0197 (11)0.0160 (11)0.0007 (9)0.0009 (8)0.0000 (10)
C2B0.0282 (12)0.0201 (12)0.0171 (11)0.0023 (10)0.0028 (9)0.0020 (9)
C3B0.0376 (13)0.0188 (12)0.0199 (12)0.0016 (11)0.0019 (11)0.0002 (10)
C4B0.0390 (14)0.0212 (13)0.0172 (12)0.0009 (10)0.0006 (10)0.0024 (10)
C5B0.0305 (12)0.0231 (12)0.0143 (11)0.0003 (10)0.0003 (9)0.0015 (10)
C6B0.0246 (11)0.0175 (11)0.0160 (11)0.0014 (9)0.0002 (9)0.0014 (9)
C7B0.0300 (12)0.0185 (12)0.0167 (11)0.0016 (10)0.0038 (10)0.0011 (10)
C8B0.0296 (12)0.0212 (12)0.0203 (12)0.0028 (10)0.0028 (10)0.0001 (10)
C9B0.0245 (11)0.0209 (12)0.0204 (11)0.0001 (10)0.0010 (9)0.0005 (10)
C10B0.0224 (11)0.0198 (11)0.0179 (11)0.0028 (9)0.0011 (9)0.0008 (10)
C11B0.0285 (12)0.0221 (12)0.0149 (11)0.0048 (10)0.0012 (9)0.0032 (10)
C12B0.0373 (13)0.0248 (13)0.0159 (11)0.0015 (11)0.0045 (10)0.0011 (10)
C13B0.0361 (14)0.0360 (16)0.0190 (12)0.0061 (12)0.0038 (10)0.0023 (12)
C14B0.081 (2)0.0204 (14)0.0248 (14)0.0058 (15)0.0088 (15)0.0020 (12)
C15B0.0340 (13)0.0257 (14)0.0229 (13)0.0004 (11)0.0028 (10)0.0045 (11)
Geometric parameters (Å, º) top
O1A—C2A1.360 (3)O1B—C2B1.353 (3)
O1A—C12A1.448 (3)O1B—C12B1.451 (3)
O2A—C4A1.239 (3)O2B—C4B1.240 (3)
O3A—C5A1.358 (3)O3B—C5B1.356 (3)
O3A—H3AA0.8200O3B—H3BA0.8200
O4A—C9A1.218 (3)O4B—C9B1.225 (3)
C1A—C10A1.363 (3)C1B—C10B1.359 (3)
C1A—C6A1.450 (3)C1B—C6B1.461 (3)
C1A—C2A1.474 (3)C1B—C2B1.478 (3)
C2A—C3A1.349 (3)C2B—C3B1.353 (3)
C3A—C4A1.454 (3)C3B—C4B1.447 (3)
C3A—C14A1.503 (3)C3B—C14B1.503 (4)
C4A—C5A1.477 (3)C4B—C5B1.485 (3)
C5A—C6A1.347 (3)C5B—C6B1.338 (3)
C6A—C7A1.514 (3)C6B—C7B1.508 (3)
C7A—C15A1.532 (4)C7B—C15B1.531 (3)
C7A—C8A1.533 (4)C7B—C8B1.541 (3)
C7A—H7AA0.9800C7B—H7BA0.9800
C8A—C9A1.512 (3)C8B—C9B1.503 (3)
C8A—H8AA0.9700C8B—H8BA0.9700
C8A—H8AB0.9700C8B—H8BB0.9700
C9A—C10A1.485 (3)C9B—C10B1.487 (3)
C10A—C11A1.506 (3)C10B—C11B1.503 (3)
C11A—C12A1.511 (3)C11B—C12B1.508 (3)
C11A—C13A1.530 (3)C11B—C13B1.533 (3)
C11A—H11A0.9800C11B—H11B0.9800
C12A—H12A0.9700C12B—H12C0.9700
C12A—H12B0.9700C12B—H12D0.9700
C13A—H13A0.9600C13B—H13D0.9600
C13A—H13B0.9600C13B—H13E0.9600
C13A—H13C0.9600C13B—H13F0.9600
C14A—H14A0.9600C14B—H14D0.9600
C14A—H14B0.9600C14B—H14E0.9600
C14A—H14C0.9600C14B—H14F0.9600
C15A—H15A0.9600C15B—H15E0.9600
C15A—H15B0.9600C15B—H15F0.9600
C15A—H15C0.9600C15B—H15G0.9600
C2A—O1A—C12A114.68 (18)C2B—O1B—C12B116.32 (18)
C5A—O3A—H3AA109.5C5B—O3B—H3BA109.5
C10A—C1A—C6A121.9 (2)C10B—C1B—C6B122.5 (2)
C10A—C1A—C2A119.3 (2)C10B—C1B—C2B118.8 (2)
C6A—C1A—C2A118.8 (2)C6B—C1B—C2B118.7 (2)
C3A—C2A—O1A119.0 (2)C3B—C2B—O1B118.2 (2)
C3A—C2A—C1A122.3 (2)C3B—C2B—C1B122.3 (2)
O1A—C2A—C1A118.56 (19)O1B—C2B—C1B119.3 (2)
C2A—C3A—C4A118.7 (2)C2B—C3B—C4B118.7 (2)
C2A—C3A—C14A124.1 (2)C2B—C3B—C14B122.9 (2)
C4A—C3A—C14A117.1 (2)C4B—C3B—C14B118.4 (2)
O2A—C4A—C3A121.4 (2)O2B—C4B—C3B122.0 (2)
O2A—C4A—C5A119.9 (2)O2B—C4B—C5B119.1 (2)
C3A—C4A—C5A118.6 (2)C3B—C4B—C5B118.9 (2)
C6A—C5A—O3A121.2 (2)C6B—C5B—O3B121.3 (2)
C6A—C5A—C4A122.4 (2)C6B—C5B—C4B122.4 (2)
O3A—C5A—C4A116.4 (2)O3B—C5B—C4B116.3 (2)
C5A—C6A—C1A118.8 (2)C5B—C6B—C1B118.7 (2)
C5A—C6A—C7A122.4 (2)C5B—C6B—C7B122.4 (2)
C1A—C6A—C7A118.7 (2)C1B—C6B—C7B118.8 (2)
C6A—C7A—C15A110.3 (2)C6B—C7B—C15B111.5 (2)
C6A—C7A—C8A109.6 (2)C6B—C7B—C8B109.93 (19)
C15A—C7A—C8A111.4 (2)C15B—C7B—C8B111.0 (2)
C6A—C7A—H7AA108.5C6B—C7B—H7BA108.1
C15A—C7A—H7AA108.5C15B—C7B—H7BA108.1
C8A—C7A—H7AA108.5C8B—C7B—H7BA108.1
C9A—C8A—C7A112.5 (2)C9B—C8B—C7B112.8 (2)
C9A—C8A—H8AA109.1C9B—C8B—H8BA109.0
C7A—C8A—H8AA109.1C7B—C8B—H8BA109.0
C9A—C8A—H8AB109.1C9B—C8B—H8BB109.0
C7A—C8A—H8AB109.1C7B—C8B—H8BB109.0
H8AA—C8A—H8AB107.8H8BA—C8B—H8BB107.8
O4A—C9A—C10A120.3 (2)O4B—C9B—C10B120.5 (2)
O4A—C9A—C8A123.2 (2)O4B—C9B—C8B122.7 (2)
C10A—C9A—C8A116.4 (2)C10B—C9B—C8B116.7 (2)
C1A—C10A—C9A120.7 (2)C1B—C10B—C9B120.1 (2)
C1A—C10A—C11A121.6 (2)C1B—C10B—C11B121.7 (2)
C9A—C10A—C11A117.5 (2)C9B—C10B—C11B117.9 (2)
C10A—C11A—C12A108.0 (2)C10B—C11B—C12B109.7 (2)
C10A—C11A—C13A111.4 (2)C10B—C11B—C13B110.1 (2)
C12A—C11A—C13A111.9 (2)C12B—C11B—C13B112.7 (2)
C10A—C11A—H11A108.5C10B—C11B—H11B108.1
C12A—C11A—H11A108.5C12B—C11B—H11B108.1
C13A—C11A—H11A108.5C13B—C11B—H11B108.1
O1A—C12A—C11A111.35 (19)O1B—C12B—C11B111.3 (2)
O1A—C12A—H12A109.4O1B—C12B—H12C109.4
C11A—C12A—H12A109.4C11B—C12B—H12C109.4
O1A—C12A—H12B109.4O1B—C12B—H12D109.4
C11A—C12A—H12B109.4C11B—C12B—H12D109.4
H12A—C12A—H12B108.0H12C—C12B—H12D108.0
C11A—C13A—H13A109.5C11B—C13B—H13D109.5
C11A—C13A—H13B109.5C11B—C13B—H13E109.5
H13A—C13A—H13B109.5H13D—C13B—H13E109.5
C11A—C13A—H13C109.5C11B—C13B—H13F109.5
H13A—C13A—H13C109.5H13D—C13B—H13F109.5
H13B—C13A—H13C109.5H13E—C13B—H13F109.5
C3A—C14A—H14A109.5C3B—C14B—H14D109.5
C3A—C14A—H14B109.5C3B—C14B—H14E109.5
H14A—C14A—H14B109.5H14D—C14B—H14E109.5
C3A—C14A—H14C109.5C3B—C14B—H14F109.5
H14A—C14A—H14C109.5H14D—C14B—H14F109.5
H14B—C14A—H14C109.5H14E—C14B—H14F109.5
C7A—C15A—H15A109.5C7B—C15B—H15E109.5
C7A—C15A—H15B109.5C7B—C15B—H15F109.5
H15A—C15A—H15B109.5H15E—C15B—H15F109.5
C7A—C15A—H15C109.5C7B—C15B—H15G109.5
H15A—C15A—H15C109.5H15E—C15B—H15G109.5
H15B—C15A—H15C109.5H15F—C15B—H15G109.5
C12A—O1A—C2A—C3A154.1 (2)C12B—O1B—C2B—C3B156.9 (2)
C12A—O1A—C2A—C1A29.6 (3)C12B—O1B—C2B—C1B27.5 (3)
C10A—C1A—C2A—C3A174.2 (2)C10B—C1B—C2B—C3B174.4 (2)
C6A—C1A—C2A—C3A6.2 (3)C6B—C1B—C2B—C3B3.1 (4)
C10A—C1A—C2A—O1A2.0 (3)C10B—C1B—C2B—O1B1.0 (3)
C6A—C1A—C2A—O1A177.67 (19)C6B—C1B—C2B—O1B178.5 (2)
O1A—C2A—C3A—C4A178.3 (2)O1B—C2B—C3B—C4B173.7 (2)
C1A—C2A—C3A—C4A2.1 (4)C1B—C2B—C3B—C4B1.8 (4)
O1A—C2A—C3A—C14A4.5 (4)O1B—C2B—C3B—C14B3.2 (4)
C1A—C2A—C3A—C14A179.4 (2)C1B—C2B—C3B—C14B178.6 (3)
C2A—C3A—C4A—O2A179.0 (2)C2B—C3B—C4B—O2B175.0 (3)
C14A—C3A—C4A—O2A3.6 (4)C14B—C3B—C4B—O2B1.9 (4)
C2A—C3A—C4A—C5A3.5 (3)C2B—C3B—C4B—C5B5.7 (4)
C14A—C3A—C4A—C5A174.0 (2)C14B—C3B—C4B—C5B177.3 (3)
O2A—C4A—C5A—C6A177.1 (2)O2B—C4B—C5B—C6B175.7 (3)
C3A—C4A—C5A—C6A5.4 (4)C3B—C4B—C5B—C6B5.0 (4)
O2A—C4A—C5A—O3A3.1 (3)O2B—C4B—C5B—O3B3.6 (4)
C3A—C4A—C5A—O3A174.5 (2)C3B—C4B—C5B—O3B175.6 (2)
O3A—C5A—C6A—C1A178.5 (2)O3B—C5B—C6B—C1B179.4 (2)
C4A—C5A—C6A—C1A1.3 (4)C4B—C5B—C6B—C1B0.1 (4)
O3A—C5A—C6A—C7A2.6 (4)O3B—C5B—C6B—C7B2.6 (4)
C4A—C5A—C6A—C7A177.3 (2)C4B—C5B—C6B—C7B178.1 (2)
C10A—C1A—C6A—C5A176.1 (2)C10B—C1B—C6B—C5B173.5 (2)
C2A—C1A—C6A—C5A4.3 (3)C2B—C1B—C6B—C5B3.9 (3)
C10A—C1A—C6A—C7A7.8 (3)C10B—C1B—C6B—C7B8.5 (3)
C2A—C1A—C6A—C7A171.9 (2)C2B—C1B—C6B—C7B174.2 (2)
C5A—C6A—C7A—C15A90.4 (3)C5B—C6B—C7B—C15B89.7 (3)
C1A—C6A—C7A—C15A85.6 (3)C1B—C6B—C7B—C15B88.3 (3)
C5A—C6A—C7A—C8A146.6 (2)C5B—C6B—C7B—C8B146.8 (2)
C1A—C6A—C7A—C8A37.4 (3)C1B—C6B—C7B—C8B35.2 (3)
C6A—C7A—C8A—C9A51.6 (3)C6B—C7B—C8B—C9B50.2 (3)
C15A—C7A—C8A—C9A70.8 (3)C15B—C7B—C8B—C9B73.6 (3)
C7A—C8A—C9A—O4A144.8 (3)C7B—C8B—C9B—O4B143.4 (2)
C7A—C8A—C9A—C10A38.7 (3)C7B—C8B—C9B—C10B40.5 (3)
C6A—C1A—C10A—C9A8.3 (4)C6B—C1B—C10B—C9B4.2 (3)
C2A—C1A—C10A—C9A172.1 (2)C2B—C1B—C10B—C9B173.1 (2)
C6A—C1A—C10A—C11A175.6 (2)C6B—C1B—C10B—C11B178.9 (2)
C2A—C1A—C10A—C11A4.1 (4)C2B—C1B—C10B—C11B1.6 (3)
O4A—C9A—C10A—C1A175.4 (3)O4B—C9B—C10B—C1B171.1 (2)
C8A—C9A—C10A—C1A8.0 (4)C8B—C9B—C10B—C1B12.7 (3)
O4A—C9A—C10A—C11A8.3 (4)O4B—C9B—C10B—C11B14.0 (3)
C8A—C9A—C10A—C11A168.3 (2)C8B—C9B—C10B—C11B162.2 (2)
C1A—C10A—C11A—C12A22.9 (3)C1B—C10B—C11B—C12B23.9 (3)
C9A—C10A—C11A—C12A160.8 (2)C9B—C10B—C11B—C12B161.3 (2)
C1A—C10A—C11A—C13A100.4 (3)C1B—C10B—C11B—C13B100.7 (3)
C9A—C10A—C11A—C13A75.9 (3)C9B—C10B—C11B—C13B74.1 (3)
C2A—O1A—C12A—C11A58.4 (3)C2B—O1B—C12B—C11B53.8 (3)
C10A—C11A—C12A—O1A52.5 (3)C10B—C11B—C12B—O1B49.7 (3)
C13A—C11A—C12A—O1A70.5 (3)C13B—C11B—C12B—O1B73.4 (3)
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
O3A—H3AA···O2A0.822.282.703 (2)112
O3A—H3AA···O2B0.821.982.760 (2)159
O3B—H3BA···O2A0.822.052.829 (2)158
O3B—H3BA···O2B0.822.242.693 (3)115
C7A—H7AA···O3A0.982.512.865 (3)101
C7B—H7BA···O3B0.982.502.854 (3)101
C12A—H12A···O4Bi0.972.503.452 (3)168
C12B—H12D···O4Bii0.972.443.281 (3)145
C14A—H14A···O1A0.962.432.853 (3)106
C12A—H12B···Cg1iii0.972.783.657 (3)151
C13A—H13B···Cg1iv0.972.673.387 (3)132
Symmetry codes: (i) x+3/2, y+2, z1/2; (ii) x1/2, y+5/2, z+1; (iii) x+3/2, y1/2, z; (iv) x+5/2, y1/2, z.

Experimental details

Crystal data
Chemical formulaC15H16O4
Mr260.28
Crystal system, space groupOrthorhombic, P212121
Temperature (K)100
a, b, c (Å)8.5390 (4), 10.0913 (5), 30.3769 (14)
V3)2617.6 (2)
Z8
Radiation typeMo Kα
µ (mm1)0.10
Crystal size (mm)0.51 × 0.19 × 0.11
Data collection
DiffractometerBruker SMART APEX2 CCD area-detector
Absorption correctionMulti-scan
(SADABS; Bruker, 2005)
Tmin, Tmax0.953, 0.990
No. of measured, independent and
observed [I > 2σ(I)] reflections
28942, 3593, 3004
Rint0.067
(sin θ/λ)max1)0.661
Refinement
R[F2 > 2σ(F2)], wR(F2), S 0.045, 0.113, 1.03
No. of reflections3593
No. of parameters349
H-atom treatmentH-atom parameters constrained
Δρmax, Δρmin (e Å3)0.30, 0.22

Computer programs: APEX2 (Bruker, 2005), APEX2, SAINT (Bruker, 2005), SHELXTL (Sheldrick, 1998), SHELXTL and PLATON (Spek, 2003).

Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
O3A—H3AA···O2A0.822.28192.703 (2)112
O3A—H3AA···O2B0.821.97622.760 (2)159
O3B—H3BA···O2A0.822.05322.829 (2)158
O3B—H3BA···O2B0.822.23652.693 (3)115
C7A—H7AA···O3A0.982.50852.865 (3)101
C7B—H7BA···O3B0.982.49552.854 (3)101
C12A—H12A···O4Bi0.972.49703.452 (3)168
C12B—H12D···O4Bii0.972.44203.281 (3)145
C14A—H14A···O1A0.962.42942.853 (3)106
C12A—H12B···Cg1iii0.972.77933.657 (3)151
C13A—H13B···Cg1iv0.972.67233.387 (3)132
Symmetry codes: (i) x+3/2, y+2, z1/2; (ii) x1/2, y+5/2, z+1; (iii) x+3/2, y1/2, z; (iv) x+5/2, y1/2, z.
 

Follow Acta Cryst. E
Sign up for e-alerts
Follow Acta Cryst. on Twitter
Follow us on facebook
Sign up for RSS feeds