accessSupporting information
Crystallographic Information File (CIF) https://doi.org/10.1107/S1600536812032540/zj2089sup1.cif | |
Structure factor file (CIF format) https://doi.org/10.1107/S1600536812032540/zj2089Isup2.hkl |
CCDC reference: 896454
The compound was prepared by Lee Shui and Mark McLaughlin using the method described by Lacourcelle et al. (1993). A sample suitable for diffraction was recrystallized from ethyl acetate.
All H atoms were placed in calculated positions, guided by difference maps, with C—H bond distances 0.95 (aromatic C) and 1.00 (alkyl C) Å, Uiso = 1.2Ueq, and thereafter refined as riding.
The crystal structure of the title compound at 298 K is monoclinic, P21/c, Z = 4, a = 9.743 (3), b = 15.523 (3), c = 16.575 (2) Å, β = 100.11 (2)°, in agreement with the published room-temperature structure (Jaud et al., 1993. CCDC refcode YASKOS, Allen, 2002). Upon cooling to 90 K, the material undergoes a phase change to triclinic (P1) and a volume contraction of 2%. The two crystallographically independent enantiomers chosen for the asymmetric unit are propeller-like with opposite pitch (Δ, Ia and Λ, Ib). Both display near twofold symmetry, with average off-symmetry bond-length/bond-angle deviations of 0.0018 (4) Å/0.41 (2)° (Ia) and 0.0026 (4) Å/0.50 (2)° (Ib). The bond lengths and bond angles are normal and are essentially as described by Jaud et al. (1993).
For the structure of the room-temperature polymorph, see: Jaud et al. (1993). For the preparation of the compound, see: Lacourcelle et al. (1993). For the Cambridge Structural Database, see: Allen (2002).
Data collection: COLLECT (Nonius, 2000); cell refinement: SCALEPACK (Otwinowski & Minor, 1997); data reduction: DENZO and SCALEPACK (Otwinowski & Minor, 1997); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999).
| Fig. 1. View of Ia (Δ, 50% probability displacement ellipsoids) |
| Fig. 2. View of Ib (Λ, 50% probability displacement ellipsoids) |
| C20H8Cl12 | Z = 4 |
| Mr = 673.66 | F(000) = 1328 |
| Triclinic, P1 | Dx = 1.853 Mg m−3 |
| Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
| a = 9.6434 (1) Å | Cell parameters from 27797 reflections |
| b = 15.4287 (2) Å | θ = 2.6–40.3° |
| c = 16.4161 (2) Å | µ = 1.39 mm−1 |
| α = 92.1948 (6)° | T = 90 K |
| β = 98.2331 (7)° | Prism, colourless |
| γ = 91.3097 (6)° | 0.40 × 0.35 × 0.15 mm |
| V = 2414.53 (5) Å3 |
| Nonius KappaCCD diffractometer | 30125 independent reflections |
| Radiation source: sealed tube | 24699 reflections with I > 2σ(I) |
| Horizonally mounted graphite crystal monochromator | Rint = 0.026 |
| Detector resolution: 9 pixels mm-1 | θmax = 40.3°, θmin = 2.6° |
| CCD rotation images, thick slices scans | h = −17→17 |
| Absorption correction: multi-scan (SCALEPACK; Otwinowski & Minor, 1997) | k = −28→28 |
| Tmin = 0.607, Tmax = 0.819 | l = −29→29 |
| 111692 measured reflections |
| Refinement on F2 | Secondary atom site location: difference Fourier map |
| Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
| R[F2 > 2σ(F2)] = 0.032 | H-atom parameters constrained |
| wR(F2) = 0.086 | w = 1/[σ2(Fo2) + (0.0362P)2 + 1.2577P] where P = (Fo2 + 2Fc2)/3 |
| S = 1.03 | (Δ/σ)max = 0.002 |
| 30125 reflections | Δρmax = 0.87 e Å−3 |
| 578 parameters | Δρmin = −0.63 e Å−3 |
| 0 restraints | Extinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
| 0 constraints | Extinction coefficient: 0.0013 (2) |
| Primary atom site location: structure-invariant direct methods |
| C20H8Cl12 | γ = 91.3097 (6)° |
| Mr = 673.66 | V = 2414.53 (5) Å3 |
| Triclinic, P1 | Z = 4 |
| a = 9.6434 (1) Å | Mo Kα radiation |
| b = 15.4287 (2) Å | µ = 1.39 mm−1 |
| c = 16.4161 (2) Å | T = 90 K |
| α = 92.1948 (6)° | 0.40 × 0.35 × 0.15 mm |
| β = 98.2331 (7)° |
| Nonius KappaCCD diffractometer | 30125 independent reflections |
| Absorption correction: multi-scan (SCALEPACK; Otwinowski & Minor, 1997) | 24699 reflections with I > 2σ(I) |
| Tmin = 0.607, Tmax = 0.819 | Rint = 0.026 |
| 111692 measured reflections |
| R[F2 > 2σ(F2)] = 0.032 | 0 restraints |
| wR(F2) = 0.086 | H-atom parameters constrained |
| S = 1.03 | Δρmax = 0.87 e Å−3 |
| 30125 reflections | Δρmin = −0.63 e Å−3 |
| 578 parameters |
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. |
| x | y | z | Uiso*/Ueq | ||
| C1 | 0.78302 (10) | 0.24744 (6) | 0.36584 (6) | 0.01060 (13) | |
| H1 | 0.718 | 0.2785 | 0.3984 | 0.013* | |
| C2 | 0.76826 (10) | 0.15090 (6) | 0.37568 (6) | 0.01118 (14) | |
| C3 | 0.77164 (12) | 0.12163 (7) | 0.45581 (6) | 0.01484 (16) | |
| H3 | 0.7646 | 0.1622 | 0.4999 | 0.018* | |
| C4 | 0.78510 (13) | 0.03398 (7) | 0.47153 (7) | 0.01839 (18) | |
| H4 | 0.7853 | 0.0148 | 0.5258 | 0.022* | |
| C5 | 0.79834 (13) | −0.02536 (7) | 0.40736 (7) | 0.01770 (18) | |
| H5 | 0.8149 | −0.0845 | 0.4183 | 0.021* | |
| C6 | 0.78719 (12) | 0.00244 (7) | 0.32715 (7) | 0.01483 (16) | |
| H6 | 0.7938 | −0.0386 | 0.2833 | 0.018* | |
| C7 | 0.76641 (10) | 0.08995 (6) | 0.30980 (6) | 0.01141 (14) | |
| C8 | 0.72700 (10) | 0.11372 (6) | 0.22086 (6) | 0.01102 (13) | |
| H8 | 0.7957 | 0.0893 | 0.1866 | 0.013* | |
| C9 | 0.70962 (10) | 0.21274 (6) | 0.20593 (6) | 0.01055 (13) | |
| H9 | 0.7587 | 0.2264 | 0.1581 | 0.013* | |
| C10 | 0.76252 (10) | 0.27912 (6) | 0.27577 (6) | 0.01032 (13) | |
| H10 | 0.6952 | 0.3276 | 0.273 | 0.012* | |
| C11 | 0.91010 (10) | 0.31842 (6) | 0.26664 (6) | 0.01082 (13) | |
| C12 | 0.95297 (10) | 0.36467 (6) | 0.35265 (6) | 0.01182 (14) | |
| C13 | 0.94026 (10) | 0.27907 (6) | 0.39788 (6) | 0.01102 (13) | |
| C14 | 1.03221 (10) | 0.22190 (6) | 0.35207 (6) | 0.01196 (14) | |
| C15 | 1.01323 (10) | 0.24454 (7) | 0.27332 (6) | 0.01183 (14) | |
| C16 | 0.54883 (10) | 0.21886 (6) | 0.17658 (6) | 0.01145 (14) | |
| C17 | 0.52148 (10) | 0.13722 (6) | 0.11775 (6) | 0.01270 (14) | |
| C18 | 0.57301 (10) | 0.07562 (6) | 0.18742 (6) | 0.01136 (14) | |
| C19 | 0.48189 (10) | 0.10455 (6) | 0.25116 (6) | 0.01187 (14) | |
| C20 | 0.47091 (10) | 0.19063 (6) | 0.24619 (6) | 0.01197 (14) | |
| Cl1 | 0.83666 (3) | 0.444688 (16) | 0.378408 (16) | 0.01515 (4) | |
| Cl2 | 1.12467 (3) | 0.411451 (17) | 0.367166 (16) | 0.01537 (4) | |
| Cl3 | 0.98690 (3) | 0.288372 (18) | 0.504965 (14) | 0.01546 (4) | |
| Cl4 | 1.12522 (3) | 0.138821 (18) | 0.394002 (17) | 0.01819 (5) | |
| Cl5 | 1.07638 (3) | 0.195595 (19) | 0.192404 (16) | 0.01775 (4) | |
| Cl6 | 0.91267 (3) | 0.383648 (17) | 0.181692 (15) | 0.01553 (4) | |
| Cl7 | 0.62374 (3) | 0.132935 (18) | 0.036646 (15) | 0.01693 (4) | |
| Cl8 | 0.34348 (3) | 0.119848 (18) | 0.074104 (16) | 0.01669 (4) | |
| Cl9 | 0.56086 (3) | −0.034447 (16) | 0.156692 (16) | 0.01555 (4) | |
| Cl10 | 0.42601 (3) | 0.039085 (17) | 0.321116 (17) | 0.01683 (4) | |
| Cl11 | 0.40182 (3) | 0.259640 (17) | 0.311679 (18) | 0.01724 (4) | |
| Cl12 | 0.49903 (3) | 0.317864 (16) | 0.134127 (17) | 0.01638 (4) | |
| C21 | 0.70185 (10) | 0.39226 (6) | 0.72349 (6) | 0.01099 (13) | |
| H21 | 0.7764 | 0.4224 | 0.6977 | 0.013* | |
| C22 | 0.72147 (10) | 0.41473 (6) | 0.81506 (6) | 0.01236 (14) | |
| C23 | 0.73181 (12) | 0.50254 (7) | 0.84174 (7) | 0.01735 (18) | |
| H23 | 0.7441 | 0.5457 | 0.8035 | 0.021* | |
| C24 | 0.72439 (14) | 0.52707 (8) | 0.92324 (8) | 0.0220 (2) | |
| H24 | 0.7347 | 0.5865 | 0.9408 | 0.026* | |
| C25 | 0.70191 (15) | 0.46452 (9) | 0.97910 (7) | 0.0227 (2) | |
| H25 | 0.6883 | 0.4814 | 1.0336 | 0.027* | |
| C26 | 0.69956 (13) | 0.37723 (8) | 0.95468 (7) | 0.01833 (18) | |
| H26 | 0.6872 | 0.3344 | 0.9933 | 0.022* | |
| C27 | 0.71524 (11) | 0.35144 (7) | 0.87372 (6) | 0.01303 (15) | |
| C28 | 0.74356 (10) | 0.25743 (6) | 0.85610 (6) | 0.01152 (14) | |
| H28 | 0.6781 | 0.2197 | 0.8822 | 0.014* | |
| C29 | 0.73930 (10) | 0.22747 (6) | 0.76363 (6) | 0.01075 (13) | |
| H29 | 0.6754 | 0.1751 | 0.7523 | 0.013* | |
| C30 | 0.69489 (10) | 0.29315 (6) | 0.69746 (6) | 0.01106 (13) | |
| H30 | 0.7566 | 0.2851 | 0.6539 | 0.013* | |
| C31 | 0.54023 (10) | 0.27880 (6) | 0.65463 (6) | 0.01190 (14) | |
| C32 | 0.52032 (10) | 0.36220 (6) | 0.60443 (6) | 0.01211 (14) | |
| C33 | 0.55125 (10) | 0.42229 (6) | 0.68299 (6) | 0.01044 (13) | |
| C34 | 0.44750 (10) | 0.38391 (6) | 0.73405 (6) | 0.01182 (14) | |
| C35 | 0.44278 (10) | 0.29802 (6) | 0.71796 (6) | 0.01284 (15) | |
| C36 | 0.89301 (10) | 0.19842 (6) | 0.75984 (6) | 0.01145 (14) | |
| C37 | 0.92908 (10) | 0.15480 (6) | 0.84375 (6) | 0.01255 (14) | |
| C38 | 0.90153 (10) | 0.23844 (6) | 0.89310 (6) | 0.01190 (14) | |
| C39 | 0.99247 (10) | 0.30344 (7) | 0.85577 (6) | 0.01231 (14) | |
| C40 | 0.98700 (10) | 0.27995 (7) | 0.77598 (6) | 0.01191 (14) | |
| Cl13 | 0.64205 (3) | 0.377793 (19) | 0.534965 (15) | 0.01720 (4) | |
| Cl14 | 0.34960 (3) | 0.370694 (18) | 0.549642 (16) | 0.01676 (4) | |
| Cl15 | 0.53663 (3) | 0.532852 (15) | 0.665173 (16) | 0.01426 (4) | |
| Cl16 | 0.37045 (3) | 0.441131 (18) | 0.804244 (17) | 0.01757 (4) | |
| Cl17 | 0.35863 (3) | 0.221032 (19) | 0.76498 (2) | 0.02185 (5) | |
| Cl18 | 0.50770 (3) | 0.180207 (17) | 0.597606 (18) | 0.01900 (5) | |
| Cl19 | 0.81665 (3) | 0.066381 (16) | 0.857572 (17) | 0.01663 (4) | |
| Cl20 | 1.10430 (3) | 0.120062 (18) | 0.864312 (16) | 0.01591 (4) | |
| Cl21 | 0.93820 (3) | 0.232330 (19) | 1.000170 (15) | 0.01646 (4) | |
| Cl22 | 1.06791 (3) | 0.393670 (18) | 0.906893 (16) | 0.01752 (4) | |
| Cl23 | 1.05143 (3) | 0.336268 (18) | 0.701995 (15) | 0.01620 (4) | |
| Cl24 | 0.91419 (3) | 0.134541 (17) | 0.672205 (15) | 0.01600 (4) |
| U11 | U22 | U33 | U12 | U13 | U23 | |
| C1 | 0.0102 (3) | 0.0109 (3) | 0.0109 (3) | 0.0006 (3) | 0.0022 (3) | 0.0009 (2) |
| C2 | 0.0118 (3) | 0.0111 (3) | 0.0109 (3) | 0.0004 (3) | 0.0023 (3) | 0.0009 (3) |
| C3 | 0.0197 (4) | 0.0137 (4) | 0.0116 (3) | −0.0007 (3) | 0.0036 (3) | 0.0020 (3) |
| C4 | 0.0258 (5) | 0.0151 (4) | 0.0146 (4) | 0.0001 (4) | 0.0030 (4) | 0.0048 (3) |
| C5 | 0.0224 (5) | 0.0122 (4) | 0.0182 (4) | 0.0020 (3) | 0.0009 (4) | 0.0033 (3) |
| C6 | 0.0169 (4) | 0.0117 (3) | 0.0154 (4) | 0.0024 (3) | 0.0005 (3) | 0.0007 (3) |
| C7 | 0.0113 (3) | 0.0111 (3) | 0.0118 (3) | 0.0014 (3) | 0.0014 (3) | 0.0011 (3) |
| C8 | 0.0102 (3) | 0.0114 (3) | 0.0113 (3) | 0.0008 (3) | 0.0013 (3) | −0.0006 (3) |
| C9 | 0.0093 (3) | 0.0116 (3) | 0.0107 (3) | −0.0004 (3) | 0.0010 (3) | 0.0012 (3) |
| C10 | 0.0092 (3) | 0.0109 (3) | 0.0107 (3) | 0.0001 (2) | 0.0012 (3) | 0.0010 (2) |
| C11 | 0.0097 (3) | 0.0124 (3) | 0.0102 (3) | −0.0006 (3) | 0.0010 (3) | 0.0018 (3) |
| C12 | 0.0107 (3) | 0.0124 (3) | 0.0120 (3) | −0.0009 (3) | 0.0008 (3) | 0.0006 (3) |
| C13 | 0.0104 (3) | 0.0132 (3) | 0.0094 (3) | −0.0001 (3) | 0.0011 (3) | 0.0009 (3) |
| C14 | 0.0100 (3) | 0.0144 (4) | 0.0118 (3) | 0.0023 (3) | 0.0017 (3) | 0.0026 (3) |
| C15 | 0.0098 (3) | 0.0157 (4) | 0.0103 (3) | 0.0012 (3) | 0.0023 (3) | 0.0009 (3) |
| C16 | 0.0106 (3) | 0.0108 (3) | 0.0125 (3) | 0.0003 (3) | −0.0001 (3) | 0.0011 (3) |
| C17 | 0.0118 (4) | 0.0140 (4) | 0.0117 (3) | −0.0009 (3) | −0.0003 (3) | 0.0002 (3) |
| C18 | 0.0111 (3) | 0.0106 (3) | 0.0123 (3) | 0.0000 (3) | 0.0016 (3) | −0.0009 (3) |
| C19 | 0.0106 (3) | 0.0115 (3) | 0.0139 (4) | −0.0002 (3) | 0.0031 (3) | 0.0004 (3) |
| C20 | 0.0099 (3) | 0.0114 (3) | 0.0147 (4) | 0.0009 (3) | 0.0023 (3) | −0.0003 (3) |
| Cl1 | 0.01452 (9) | 0.01185 (8) | 0.01893 (10) | 0.00055 (7) | 0.00233 (8) | −0.00109 (7) |
| Cl2 | 0.01118 (9) | 0.01763 (10) | 0.01655 (9) | −0.00436 (7) | −0.00006 (7) | 0.00173 (7) |
| Cl3 | 0.01539 (10) | 0.02149 (10) | 0.00901 (8) | −0.00196 (8) | 0.00049 (7) | 0.00051 (7) |
| Cl4 | 0.01609 (10) | 0.02054 (11) | 0.01883 (10) | 0.00766 (8) | 0.00282 (8) | 0.00687 (8) |
| Cl5 | 0.01531 (10) | 0.02630 (12) | 0.01232 (9) | 0.00480 (8) | 0.00425 (7) | −0.00134 (8) |
| Cl6 | 0.01548 (10) | 0.01764 (10) | 0.01337 (9) | −0.00241 (7) | 0.00075 (7) | 0.00634 (7) |
| Cl7 | 0.01755 (10) | 0.02238 (11) | 0.01071 (9) | −0.00275 (8) | 0.00244 (7) | −0.00091 (7) |
| Cl8 | 0.01222 (9) | 0.01876 (10) | 0.01734 (10) | −0.00185 (7) | −0.00323 (7) | −0.00030 (8) |
| Cl9 | 0.01529 (10) | 0.01106 (8) | 0.01946 (10) | 0.00016 (7) | 0.00067 (8) | −0.00321 (7) |
| Cl10 | 0.01749 (10) | 0.01530 (9) | 0.01925 (10) | −0.00123 (8) | 0.00744 (8) | 0.00352 (8) |
| Cl11 | 0.01515 (10) | 0.01373 (9) | 0.02399 (11) | 0.00053 (7) | 0.00797 (8) | −0.00388 (8) |
| Cl12 | 0.01552 (10) | 0.01303 (9) | 0.01943 (10) | 0.00099 (7) | −0.00262 (8) | 0.00466 (7) |
| C21 | 0.0096 (3) | 0.0118 (3) | 0.0114 (3) | −0.0004 (3) | 0.0008 (3) | 0.0013 (3) |
| C22 | 0.0120 (4) | 0.0123 (3) | 0.0120 (3) | 0.0003 (3) | −0.0007 (3) | −0.0008 (3) |
| C23 | 0.0193 (4) | 0.0132 (4) | 0.0171 (4) | 0.0014 (3) | −0.0051 (3) | −0.0015 (3) |
| C24 | 0.0272 (6) | 0.0168 (4) | 0.0187 (5) | 0.0065 (4) | −0.0075 (4) | −0.0061 (3) |
| C25 | 0.0280 (6) | 0.0235 (5) | 0.0151 (4) | 0.0084 (4) | −0.0015 (4) | −0.0061 (4) |
| C26 | 0.0215 (5) | 0.0212 (5) | 0.0122 (4) | 0.0045 (4) | 0.0021 (3) | −0.0012 (3) |
| C27 | 0.0133 (4) | 0.0143 (4) | 0.0112 (3) | 0.0016 (3) | 0.0010 (3) | −0.0004 (3) |
| C28 | 0.0106 (3) | 0.0135 (3) | 0.0109 (3) | 0.0004 (3) | 0.0023 (3) | 0.0022 (3) |
| C29 | 0.0093 (3) | 0.0118 (3) | 0.0110 (3) | 0.0011 (3) | 0.0008 (3) | 0.0008 (3) |
| C30 | 0.0099 (3) | 0.0120 (3) | 0.0110 (3) | 0.0008 (3) | 0.0007 (3) | −0.0001 (3) |
| C31 | 0.0107 (3) | 0.0109 (3) | 0.0132 (3) | 0.0005 (3) | −0.0010 (3) | −0.0005 (3) |
| C32 | 0.0116 (3) | 0.0140 (3) | 0.0103 (3) | 0.0013 (3) | 0.0001 (3) | 0.0006 (3) |
| C33 | 0.0093 (3) | 0.0107 (3) | 0.0114 (3) | 0.0002 (2) | 0.0014 (3) | 0.0012 (3) |
| C34 | 0.0098 (3) | 0.0135 (3) | 0.0124 (3) | 0.0001 (3) | 0.0025 (3) | 0.0012 (3) |
| C35 | 0.0098 (3) | 0.0123 (3) | 0.0167 (4) | −0.0009 (3) | 0.0023 (3) | 0.0032 (3) |
| C36 | 0.0101 (3) | 0.0137 (3) | 0.0102 (3) | 0.0017 (3) | 0.0005 (3) | 0.0002 (3) |
| C37 | 0.0104 (3) | 0.0143 (4) | 0.0129 (3) | 0.0014 (3) | 0.0010 (3) | 0.0028 (3) |
| C38 | 0.0113 (3) | 0.0152 (4) | 0.0092 (3) | 0.0000 (3) | 0.0013 (3) | 0.0021 (3) |
| C39 | 0.0108 (3) | 0.0152 (4) | 0.0106 (3) | −0.0017 (3) | 0.0008 (3) | 0.0013 (3) |
| C40 | 0.0103 (3) | 0.0160 (4) | 0.0096 (3) | −0.0006 (3) | 0.0015 (3) | 0.0023 (3) |
| Cl13 | 0.01770 (10) | 0.02354 (11) | 0.01141 (9) | 0.00470 (8) | 0.00434 (7) | 0.00335 (8) |
| Cl14 | 0.01352 (9) | 0.01905 (10) | 0.01587 (10) | 0.00283 (8) | −0.00431 (7) | 0.00008 (8) |
| Cl15 | 0.01306 (9) | 0.01089 (8) | 0.01855 (10) | 0.00068 (7) | 0.00050 (7) | 0.00358 (7) |
| Cl16 | 0.01555 (10) | 0.02152 (11) | 0.01677 (10) | 0.00244 (8) | 0.00659 (8) | −0.00163 (8) |
| Cl17 | 0.01655 (11) | 0.01744 (11) | 0.03321 (14) | −0.00172 (8) | 0.00695 (10) | 0.01084 (10) |
| Cl18 | 0.01851 (11) | 0.01363 (9) | 0.02210 (11) | 0.00153 (8) | −0.00507 (9) | −0.00519 (8) |
| Cl19 | 0.01466 (10) | 0.01355 (9) | 0.02162 (11) | −0.00028 (7) | 0.00144 (8) | 0.00481 (8) |
| Cl20 | 0.01137 (9) | 0.02036 (10) | 0.01609 (9) | 0.00441 (7) | 0.00072 (7) | 0.00441 (8) |
| Cl21 | 0.01617 (10) | 0.02432 (11) | 0.00905 (8) | 0.00128 (8) | 0.00142 (7) | 0.00381 (7) |
| Cl22 | 0.01692 (10) | 0.01942 (10) | 0.01496 (9) | −0.00570 (8) | −0.00048 (8) | −0.00125 (8) |
| Cl23 | 0.01377 (9) | 0.02338 (11) | 0.01183 (9) | −0.00289 (8) | 0.00262 (7) | 0.00475 (8) |
| Cl24 | 0.01656 (10) | 0.01830 (10) | 0.01279 (9) | 0.00548 (8) | 0.00096 (7) | −0.00253 (7) |
| C1—C2 | 1.5099 (13) | C21—C22 | 1.5136 (14) |
| C1—C10 | 1.5623 (13) | C21—C30 | 1.5694 (13) |
| C1—C13 | 1.5913 (13) | C21—C33 | 1.5949 (13) |
| C1—H1 | 1 | C21—H21 | 1 |
| C2—C3 | 1.4033 (14) | C22—C27 | 1.4037 (14) |
| C2—C7 | 1.4036 (14) | C22—C23 | 1.4046 (14) |
| C3—C4 | 1.3919 (15) | C23—C24 | 1.3885 (17) |
| C3—H3 | 0.95 | C23—H23 | 0.95 |
| C4—C5 | 1.3908 (17) | C24—C25 | 1.391 (2) |
| C4—H4 | 0.95 | C24—H24 | 0.95 |
| C5—C6 | 1.3907 (15) | C25—C26 | 1.3891 (17) |
| C5—H5 | 0.95 | C25—H25 | 0.95 |
| C6—C7 | 1.4035 (14) | C26—C27 | 1.4026 (15) |
| C6—H6 | 0.95 | C26—H26 | 0.95 |
| C7—C8 | 1.5163 (13) | C27—C28 | 1.5070 (14) |
| C8—C9 | 1.5655 (13) | C28—C29 | 1.5643 (13) |
| C8—C18 | 1.5980 (13) | C28—C38 | 1.5951 (14) |
| C8—H8 | 1 | C28—H28 | 1 |
| C9—C10 | 1.5305 (13) | C29—C30 | 1.5366 (13) |
| C9—C16 | 1.5625 (13) | C29—C36 | 1.5673 (13) |
| C9—H9 | 1 | C29—H29 | 1 |
| C10—C11 | 1.5633 (13) | C30—C31 | 1.5622 (13) |
| C10—H10 | 1 | C30—H30 | 1 |
| C11—C15 | 1.5265 (14) | C31—C35 | 1.5233 (15) |
| C11—C12 | 1.5543 (13) | C31—C32 | 1.5554 (14) |
| C11—Cl6 | 1.7535 (10) | C31—Cl18 | 1.7531 (10) |
| C12—C13 | 1.5506 (14) | C32—C33 | 1.5484 (13) |
| C12—Cl1 | 1.7664 (10) | C32—Cl13 | 1.7685 (10) |
| C12—Cl2 | 1.7716 (10) | C32—Cl14 | 1.7695 (10) |
| C13—C14 | 1.5185 (14) | C33—C34 | 1.5183 (13) |
| C13—Cl3 | 1.7505 (9) | C33—Cl15 | 1.7472 (9) |
| C14—C15 | 1.3403 (13) | C34—C35 | 1.3398 (14) |
| C14—Cl4 | 1.6926 (10) | C34—Cl16 | 1.6902 (10) |
| C15—Cl5 | 1.6976 (10) | C35—Cl17 | 1.6943 (10) |
| C16—C20 | 1.5262 (14) | C36—C40 | 1.5256 (14) |
| C16—C17 | 1.5517 (14) | C36—C37 | 1.5544 (13) |
| C16—Cl12 | 1.7518 (10) | C36—Cl24 | 1.7514 (10) |
| C17—C18 | 1.5493 (14) | C37—C38 | 1.5459 (14) |
| C17—Cl7 | 1.7668 (11) | C37—Cl19 | 1.7648 (10) |
| C17—Cl8 | 1.7730 (10) | C37—Cl20 | 1.7744 (10) |
| C18—C19 | 1.5204 (14) | C38—C39 | 1.5202 (14) |
| C18—Cl9 | 1.7495 (10) | C38—Cl21 | 1.7492 (10) |
| C19—C20 | 1.3395 (14) | C39—C40 | 1.3390 (14) |
| C19—Cl10 | 1.6943 (10) | C39—Cl22 | 1.6915 (10) |
| C20—Cl11 | 1.6980 (10) | C40—Cl23 | 1.6995 (10) |
| C2—C1—C10 | 116.62 (8) | C22—C21—C30 | 116.46 (8) |
| C2—C1—C13 | 109.50 (8) | C22—C21—C33 | 109.13 (8) |
| C10—C1—C13 | 101.60 (7) | C30—C21—C33 | 101.61 (7) |
| C2—C1—H1 | 109.6 | C22—C21—H21 | 109.8 |
| C10—C1—H1 | 109.6 | C30—C21—H21 | 109.8 |
| C13—C1—H1 | 109.6 | C33—C21—H21 | 109.8 |
| C3—C2—C7 | 119.20 (9) | C27—C22—C23 | 118.69 (9) |
| C3—C2—C1 | 117.67 (8) | C27—C22—C21 | 122.21 (9) |
| C7—C2—C1 | 122.78 (8) | C23—C22—C21 | 118.77 (9) |
| C4—C3—C2 | 120.93 (10) | C24—C23—C22 | 120.94 (11) |
| C4—C3—H3 | 119.5 | C24—C23—H23 | 119.5 |
| C2—C3—H3 | 119.5 | C22—C23—H23 | 119.5 |
| C5—C4—C3 | 119.68 (10) | C23—C24—C25 | 119.96 (11) |
| C5—C4—H4 | 120.2 | C23—C24—H24 | 120 |
| C3—C4—H4 | 120.2 | C25—C24—H24 | 120 |
| C6—C5—C4 | 119.63 (10) | C26—C25—C24 | 119.55 (11) |
| C6—C5—H5 | 120.2 | C26—C25—H25 | 120.2 |
| C4—C5—H5 | 120.2 | C24—C25—H25 | 120.2 |
| C5—C6—C7 | 121.21 (10) | C25—C26—C27 | 120.86 (11) |
| C5—C6—H6 | 119.4 | C25—C26—H26 | 119.6 |
| C7—C6—H6 | 119.4 | C27—C26—H26 | 119.6 |
| C6—C7—C2 | 118.77 (9) | C26—C27—C22 | 119.35 (10) |
| C6—C7—C8 | 118.72 (9) | C26—C27—C28 | 117.94 (9) |
| C2—C7—C8 | 122.16 (8) | C22—C27—C28 | 122.23 (9) |
| C7—C8—C9 | 115.90 (8) | C27—C28—C29 | 116.94 (8) |
| C7—C8—C18 | 109.08 (8) | C27—C28—C38 | 109.12 (8) |
| C9—C8—C18 | 101.61 (7) | C29—C28—C38 | 101.68 (7) |
| C7—C8—H8 | 110 | C27—C28—H28 | 109.6 |
| C9—C8—H8 | 110 | C29—C28—H28 | 109.6 |
| C18—C8—H8 | 110 | C38—C28—H28 | 109.6 |
| C10—C9—C16 | 112.28 (8) | C30—C29—C28 | 118.17 (8) |
| C10—C9—C8 | 119.29 (8) | C30—C29—C36 | 110.65 (8) |
| C16—C9—C8 | 102.75 (7) | C28—C29—C36 | 102.98 (7) |
| C10—C9—H9 | 107.3 | C30—C29—H29 | 108.2 |
| C16—C9—H9 | 107.3 | C28—C29—H29 | 108.2 |
| C8—C9—H9 | 107.3 | C36—C29—H29 | 108.2 |
| C9—C10—C1 | 117.92 (8) | C29—C30—C31 | 113.40 (8) |
| C9—C10—C11 | 111.87 (8) | C29—C30—C21 | 118.58 (8) |
| C1—C10—C11 | 103.20 (7) | C31—C30—C21 | 102.81 (7) |
| C9—C10—H10 | 107.8 | C29—C30—H30 | 107.1 |
| C1—C10—H10 | 107.8 | C31—C30—H30 | 107.1 |
| C11—C10—H10 | 107.8 | C21—C30—H30 | 107.1 |
| C15—C11—C12 | 99.75 (7) | C35—C31—C32 | 99.48 (8) |
| C15—C11—C10 | 107.59 (8) | C35—C31—C30 | 108.49 (8) |
| C12—C11—C10 | 101.23 (7) | C32—C31—C30 | 100.82 (7) |
| C15—C11—Cl6 | 115.79 (7) | C35—C31—Cl18 | 115.94 (7) |
| C12—C11—Cl6 | 115.87 (7) | C32—C31—Cl18 | 115.82 (7) |
| C10—C11—Cl6 | 114.67 (6) | C30—C31—Cl18 | 114.34 (7) |
| C13—C12—C11 | 92.42 (7) | C33—C32—C31 | 92.48 (7) |
| C13—C12—Cl1 | 113.60 (7) | C33—C32—Cl13 | 112.85 (7) |
| C11—C12—Cl1 | 114.64 (7) | C31—C32—Cl13 | 114.98 (7) |
| C13—C12—Cl2 | 113.77 (7) | C33—C32—Cl14 | 114.30 (7) |
| C11—C12—Cl2 | 113.72 (7) | C31—C32—Cl14 | 113.66 (7) |
| Cl1—C12—Cl2 | 108.22 (5) | Cl13—C32—Cl14 | 108.13 (5) |
| C14—C13—C12 | 99.82 (8) | C34—C33—C32 | 99.98 (7) |
| C14—C13—C1 | 106.03 (7) | C34—C33—C21 | 105.85 (7) |
| C12—C13—C1 | 102.45 (7) | C32—C33—C21 | 102.54 (7) |
| C14—C13—Cl3 | 115.75 (7) | C34—C33—Cl15 | 116.02 (7) |
| C12—C13—Cl3 | 114.89 (7) | C32—C33—Cl15 | 114.41 (7) |
| C1—C13—Cl3 | 115.87 (7) | C21—C33—Cl15 | 116.01 (6) |
| C15—C14—C13 | 107.20 (8) | C35—C34—C33 | 106.63 (8) |
| C15—C14—Cl4 | 128.20 (8) | C35—C34—Cl16 | 128.68 (8) |
| C13—C14—Cl4 | 124.28 (7) | C33—C34—Cl16 | 124.37 (7) |
| C14—C15—C11 | 107.22 (8) | C34—C35—C31 | 107.86 (8) |
| C14—C15—Cl5 | 127.72 (8) | C34—C35—Cl17 | 127.52 (8) |
| C11—C15—Cl5 | 124.79 (7) | C31—C35—Cl17 | 124.34 (7) |
| C20—C16—C17 | 99.79 (8) | C40—C36—C37 | 100.05 (7) |
| C20—C16—C9 | 108.31 (8) | C40—C36—C29 | 106.76 (8) |
| C17—C16—C9 | 100.91 (8) | C37—C36—C29 | 101.62 (8) |
| C20—C16—Cl12 | 115.58 (7) | C40—C36—Cl24 | 115.80 (7) |
| C17—C16—Cl12 | 116.17 (7) | C37—C36—Cl24 | 115.92 (7) |
| C9—C16—Cl12 | 114.22 (7) | C29—C36—Cl24 | 114.76 (6) |
| C18—C17—C16 | 92.43 (7) | C38—C37—C36 | 92.52 (7) |
| C18—C17—Cl7 | 112.78 (7) | C38—C37—Cl19 | 113.76 (7) |
| C16—C17—Cl7 | 114.95 (7) | C36—C37—Cl19 | 114.29 (7) |
| C18—C17—Cl8 | 114.39 (7) | C38—C37—Cl20 | 113.72 (7) |
| C16—C17—Cl8 | 114.08 (7) | C36—C37—Cl20 | 114.20 (7) |
| Cl7—C17—Cl8 | 107.83 (5) | Cl19—C37—Cl20 | 107.95 (5) |
| C19—C18—C17 | 99.77 (8) | C39—C38—C37 | 100.27 (8) |
| C19—C18—C8 | 105.71 (7) | C39—C38—C28 | 105.99 (8) |
| C17—C18—C8 | 102.71 (7) | C37—C38—C28 | 101.98 (7) |
| C19—C18—Cl9 | 116.46 (7) | C39—C38—Cl21 | 115.08 (7) |
| C17—C18—Cl9 | 114.10 (7) | C37—C38—Cl21 | 114.92 (7) |
| C8—C18—Cl9 | 116.01 (7) | C28—C38—Cl21 | 116.56 (7) |
| C20—C19—C18 | 106.61 (8) | C40—C39—C38 | 107.24 (8) |
| C20—C19—Cl10 | 128.56 (8) | C40—C39—Cl22 | 128.51 (8) |
| C18—C19—Cl10 | 124.41 (7) | C38—C39—Cl22 | 123.90 (7) |
| C19—C20—C16 | 107.69 (8) | C39—C40—C36 | 107.17 (8) |
| C19—C20—Cl11 | 127.26 (8) | C39—C40—Cl23 | 127.44 (8) |
| C16—C20—Cl11 | 124.64 (7) | C36—C40—Cl23 | 124.86 (7) |
| C10—C1—C2—C3 | −173.50 (9) | C30—C21—C22—C27 | −8.24 (14) |
| C13—C1—C2—C3 | 71.92 (11) | C33—C21—C22—C27 | 106.00 (10) |
| C10—C1—C2—C7 | 13.41 (13) | C30—C21—C22—C23 | 178.47 (9) |
| C13—C1—C2—C7 | −101.18 (10) | C33—C21—C22—C23 | −67.29 (12) |
| C7—C2—C3—C4 | 5.48 (16) | C27—C22—C23—C24 | −5.27 (16) |
| C1—C2—C3—C4 | −167.88 (10) | C21—C22—C23—C24 | 168.26 (10) |
| C2—C3—C4—C5 | 1.35 (18) | C22—C23—C24—C25 | −2.09 (19) |
| C3—C4—C5—C6 | −4.92 (18) | C23—C24—C25—C26 | 5.7 (2) |
| C4—C5—C6—C7 | 1.69 (18) | C24—C25—C26—C27 | −1.98 (19) |
| C5—C6—C7—C2 | 5.11 (16) | C25—C26—C27—C22 | −5.41 (17) |
| C5—C6—C7—C8 | −168.25 (10) | C25—C26—C27—C28 | 166.77 (11) |
| C3—C2—C7—C6 | −8.57 (15) | C23—C22—C27—C26 | 8.92 (15) |
| C1—C2—C7—C6 | 164.42 (9) | C21—C22—C27—C26 | −164.38 (10) |
| C3—C2—C7—C8 | 164.54 (9) | C23—C22—C27—C28 | −162.92 (10) |
| C1—C2—C7—C8 | −22.46 (15) | C21—C22—C27—C28 | 23.78 (15) |
| C6—C7—C8—C9 | −178.35 (9) | C26—C27—C28—C29 | 171.49 (9) |
| C2—C7—C8—C9 | 8.53 (13) | C22—C27—C28—C29 | −16.56 (14) |
| C6—C7—C8—C18 | 67.77 (11) | C26—C27—C28—C38 | −73.90 (12) |
| C2—C7—C8—C18 | −105.35 (10) | C22—C27—C28—C38 | 98.05 (11) |
| C7—C8—C9—C10 | 13.07 (12) | C27—C28—C29—C30 | −5.02 (12) |
| C18—C8—C9—C10 | 131.16 (8) | C38—C28—C29—C30 | −123.72 (9) |
| C7—C8—C9—C16 | −111.87 (9) | C27—C28—C29—C36 | 117.26 (9) |
| C18—C8—C9—C16 | 6.21 (9) | C38—C28—C29—C36 | −1.44 (9) |
| C16—C9—C10—C1 | 99.28 (9) | C28—C29—C30—C31 | −101.76 (10) |
| C8—C9—C10—C1 | −20.94 (12) | C36—C29—C30—C31 | 139.94 (8) |
| C16—C9—C10—C11 | −141.30 (8) | C28—C29—C30—C21 | 18.97 (12) |
| C8—C9—C10—C11 | 98.47 (10) | C36—C29—C30—C21 | −99.33 (10) |
| C2—C1—C10—C9 | 8.32 (12) | C22—C21—C30—C29 | −12.98 (12) |
| C13—C1—C10—C9 | 127.27 (8) | C33—C21—C30—C29 | −131.41 (8) |
| C2—C1—C10—C11 | −115.55 (9) | C22—C21—C30—C31 | 113.02 (9) |
| C13—C1—C10—C11 | 3.40 (9) | C33—C21—C30—C31 | −5.41 (9) |
| C9—C10—C11—C15 | −63.17 (9) | C29—C30—C31—C35 | 66.67 (10) |
| C1—C10—C11—C15 | 64.59 (9) | C21—C30—C31—C35 | −62.61 (9) |
| C9—C10—C11—C12 | −167.29 (7) | C29—C30—C31—C32 | 170.59 (8) |
| C1—C10—C11—C12 | −39.54 (9) | C21—C30—C31—C32 | 41.31 (9) |
| C9—C10—C11—Cl6 | 67.21 (9) | C29—C30—C31—Cl18 | −64.44 (10) |
| C1—C10—C11—Cl6 | −165.03 (6) | C21—C30—C31—Cl18 | 166.28 (7) |
| C15—C11—C12—C13 | −51.76 (8) | C35—C31—C32—C33 | 51.48 (8) |
| C10—C11—C12—C13 | 58.53 (8) | C30—C31—C32—C33 | −59.58 (8) |
| Cl6—C11—C12—C13 | −176.78 (7) | Cl18—C31—C32—C33 | 176.46 (7) |
| C15—C11—C12—Cl1 | −169.16 (6) | C35—C31—C32—Cl13 | 168.16 (6) |
| C10—C11—C12—Cl1 | −58.87 (8) | C30—C31—C32—Cl13 | 57.11 (9) |
| Cl6—C11—C12—Cl1 | 65.82 (9) | Cl18—C31—C32—Cl13 | −66.86 (9) |
| C15—C11—C12—Cl2 | 65.58 (8) | C35—C31—C32—Cl14 | −66.47 (8) |
| C10—C11—C12—Cl2 | 175.87 (6) | C30—C31—C32—Cl14 | −177.53 (6) |
| Cl6—C11—C12—Cl2 | −59.44 (9) | Cl18—C31—C32—Cl14 | 58.51 (9) |
| C11—C12—C13—C14 | 52.50 (8) | C31—C32—C33—C34 | −52.74 (8) |
| Cl1—C12—C13—C14 | 170.78 (6) | Cl13—C32—C33—C34 | −171.23 (6) |
| Cl2—C12—C13—C14 | −64.80 (8) | Cl14—C32—C33—C34 | 64.66 (8) |
| C11—C12—C13—C1 | −56.48 (8) | C31—C32—C33—C21 | 56.12 (8) |
| Cl1—C12—C13—C1 | 61.80 (8) | Cl13—C32—C33—C21 | −62.37 (8) |
| Cl2—C12—C13—C1 | −173.78 (6) | Cl14—C32—C33—C21 | 173.52 (6) |
| C11—C12—C13—Cl3 | 177.01 (7) | C31—C32—C33—Cl15 | −177.42 (6) |
| Cl1—C12—C13—Cl3 | −64.72 (8) | Cl13—C32—C33—Cl15 | 64.09 (8) |
| Cl2—C12—C13—Cl3 | 59.71 (9) | Cl14—C32—C33—Cl15 | −60.01 (9) |
| C2—C1—C13—C14 | 53.64 (9) | C22—C21—C33—C34 | −51.60 (10) |
| C10—C1—C13—C14 | −70.27 (8) | C30—C21—C33—C34 | 71.95 (9) |
| C2—C1—C13—C12 | 157.83 (8) | C22—C21—C33—C32 | −155.94 (8) |
| C10—C1—C13—C12 | 33.93 (9) | C30—C21—C33—C32 | −32.39 (9) |
| C2—C1—C13—Cl3 | −76.28 (9) | C22—C21—C33—Cl15 | 78.63 (9) |
| C10—C1—C13—Cl3 | 159.81 (6) | C30—C21—C33—Cl15 | −157.82 (7) |
| C12—C13—C14—C15 | −35.79 (10) | C32—C33—C34—C35 | 36.13 (10) |
| C1—C13—C14—C15 | 70.31 (10) | C21—C33—C34—C35 | −70.08 (10) |
| Cl3—C13—C14—C15 | −159.70 (7) | Cl15—C33—C34—C35 | 159.69 (7) |
| C12—C13—C14—Cl4 | 150.16 (8) | C32—C33—C34—Cl16 | −149.88 (7) |
| C1—C13—C14—Cl4 | −103.74 (9) | C21—C33—C34—Cl16 | 103.91 (9) |
| Cl3—C13—C14—Cl4 | 26.25 (11) | Cl15—C33—C34—Cl16 | −26.32 (11) |
| C13—C14—C15—C11 | 1.03 (11) | C33—C34—C35—C31 | −1.40 (11) |
| Cl4—C14—C15—C11 | 174.77 (8) | Cl16—C34—C35—C31 | −175.04 (8) |
| C13—C14—C15—Cl5 | −173.21 (8) | C33—C34—C35—Cl17 | 172.77 (8) |
| Cl4—C14—C15—Cl5 | 0.53 (15) | Cl16—C34—C35—Cl17 | −0.88 (15) |
| C12—C11—C15—C14 | 33.98 (10) | C32—C31—C35—C34 | −33.58 (10) |
| C10—C11—C15—C14 | −71.19 (10) | C30—C31—C35—C34 | 71.28 (10) |
| Cl6—C11—C15—C14 | 159.06 (7) | Cl18—C31—C35—C34 | −158.48 (7) |
| C12—C11—C15—Cl5 | −151.57 (8) | C32—C31—C35—Cl17 | 152.03 (7) |
| C10—C11—C15—Cl5 | 103.26 (9) | C30—C31—C35—Cl17 | −103.11 (9) |
| Cl6—C11—C15—Cl5 | −26.49 (11) | Cl18—C31—C35—Cl17 | 27.12 (11) |
| C10—C9—C16—C20 | −67.18 (10) | C30—C29—C36—C40 | 60.71 (9) |
| C8—C9—C16—C20 | 62.24 (9) | C28—C29—C36—C40 | −66.49 (9) |
| C10—C9—C16—C17 | −171.43 (8) | C30—C29—C36—C37 | 165.07 (8) |
| C8—C9—C16—C17 | −42.02 (9) | C28—C29—C36—C37 | 37.87 (9) |
| C10—C9—C16—Cl12 | 63.17 (9) | C30—C29—C36—Cl24 | −69.04 (9) |
| C8—C9—C16—Cl12 | −167.41 (6) | C28—C29—C36—Cl24 | 163.76 (6) |
| C20—C16—C17—C18 | −51.30 (8) | C40—C36—C37—C38 | 51.35 (8) |
| C9—C16—C17—C18 | 59.68 (8) | C29—C36—C37—C38 | −58.25 (8) |
| Cl12—C16—C17—C18 | −176.26 (7) | Cl24—C36—C37—C38 | 176.64 (7) |
| C20—C16—C17—Cl7 | −167.86 (7) | C40—C36—C37—Cl19 | 168.89 (7) |
| C9—C16—C17—Cl7 | −56.89 (9) | C29—C36—C37—Cl19 | 59.29 (9) |
| Cl12—C16—C17—Cl7 | 67.18 (9) | Cl24—C36—C37—Cl19 | −65.83 (9) |
| C20—C16—C17—Cl8 | 66.84 (8) | C40—C36—C37—Cl20 | −66.11 (9) |
| C9—C16—C17—Cl8 | 177.82 (6) | C29—C36—C37—Cl20 | −175.71 (6) |
| Cl12—C16—C17—Cl8 | −58.12 (9) | Cl24—C36—C37—Cl20 | 59.17 (9) |
| C16—C17—C18—C19 | 53.07 (8) | C36—C37—C38—C39 | −51.74 (8) |
| Cl7—C17—C18—C19 | 171.48 (6) | Cl19—C37—C38—C39 | −169.73 (6) |
| Cl8—C17—C18—C19 | −64.80 (8) | Cl20—C37—C38—C39 | 66.13 (8) |
| C16—C17—C18—C8 | −55.62 (8) | C36—C37—C38—C28 | 57.20 (8) |
| Cl7—C17—C18—C8 | 62.79 (8) | Cl19—C37—C38—C28 | −60.78 (8) |
| Cl8—C17—C18—C8 | −173.50 (6) | Cl20—C37—C38—C28 | 175.07 (6) |
| C16—C17—C18—Cl9 | 177.98 (7) | C36—C37—C38—Cl21 | −175.75 (7) |
| Cl7—C17—C18—Cl9 | −63.61 (8) | Cl19—C37—C38—Cl21 | 66.27 (8) |
| Cl8—C17—C18—Cl9 | 60.10 (9) | Cl20—C37—C38—Cl21 | −57.87 (9) |
| C7—C8—C18—C19 | 50.31 (10) | C27—C28—C38—C39 | −55.30 (10) |
| C9—C8—C18—C19 | −72.58 (9) | C29—C28—C38—C39 | 68.84 (9) |
| C7—C8—C18—C17 | 154.44 (8) | C27—C28—C38—C37 | −159.80 (8) |
| C9—C8—C18—C17 | 31.56 (9) | C29—C28—C38—C37 | −35.66 (9) |
| C7—C8—C18—Cl9 | −80.40 (9) | C27—C28—C38—Cl21 | 74.21 (9) |
| C9—C8—C18—Cl9 | 156.71 (7) | C29—C28—C38—Cl21 | −161.65 (7) |
| C17—C18—C19—C20 | −37.05 (10) | C37—C38—C39—C40 | 35.04 (10) |
| C8—C18—C19—C20 | 69.24 (10) | C28—C38—C39—C40 | −70.71 (10) |
| Cl9—C18—C19—C20 | −160.31 (7) | Cl21—C38—C39—C40 | 158.93 (8) |
| C17—C18—C19—Cl10 | 149.88 (7) | C37—C38—C39—Cl22 | −151.30 (8) |
| C8—C18—C19—Cl10 | −103.83 (9) | C28—C38—C39—Cl22 | 102.96 (9) |
| Cl9—C18—C19—Cl10 | 26.62 (11) | Cl21—C38—C39—Cl22 | −27.41 (11) |
| C18—C19—C20—C16 | 2.56 (10) | C38—C39—C40—C36 | −0.47 (11) |
| Cl10—C19—C20—C16 | 175.25 (8) | Cl22—C39—C40—C36 | −173.75 (8) |
| C18—C19—C20—Cl11 | −170.33 (7) | C38—C39—C40—Cl23 | 171.46 (8) |
| Cl10—C19—C20—Cl11 | 2.35 (15) | Cl22—C39—C40—Cl23 | −1.82 (16) |
| C17—C16—C20—C19 | 32.74 (10) | C37—C36—C40—C39 | −34.02 (10) |
| C9—C16—C20—C19 | −72.30 (10) | C29—C36—C40—C39 | 71.46 (10) |
| Cl12—C16—C20—C19 | 158.11 (7) | Cl24—C36—C40—C39 | −159.39 (7) |
| C17—C16—C20—Cl11 | −154.13 (7) | C37—C36—C40—Cl23 | 153.79 (8) |
| C9—C16—C20—Cl11 | 100.83 (9) | C29—C36—C40—Cl23 | −100.73 (9) |
| Cl12—C16—C20—Cl11 | −28.77 (11) | Cl24—C36—C40—Cl23 | 28.42 (11) |
Experimental details
| Crystal data | |
| Chemical formula | C20H8Cl12 |
| Mr | 673.66 |
| Crystal system, space group | Triclinic, P1 |
| Temperature (K) | 90 |
| a, b, c (Å) | 9.6434 (1), 15.4287 (2), 16.4161 (2) |
| α, β, γ (°) | 92.1948 (6), 98.2331 (7), 91.3097 (6) |
| V (Å3) | 2414.53 (5) |
| Z | 4 |
| Radiation type | Mo Kα |
| µ (mm−1) | 1.39 |
| Crystal size (mm) | 0.40 × 0.35 × 0.15 |
| Data collection | |
| Diffractometer | Nonius KappaCCD |
| Absorption correction | Multi-scan (SCALEPACK; Otwinowski & Minor, 1997) |
| Tmin, Tmax | 0.607, 0.819 |
| No. of measured, independent and observed [I > 2σ(I)] reflections | 111692, 30125, 24699 |
| Rint | 0.026 |
| (sin θ/λ)max (Å−1) | 0.910 |
| Refinement | |
| R[F2 > 2σ(F2)], wR(F2), S | 0.032, 0.086, 1.03 |
| No. of reflections | 30125 |
| No. of parameters | 578 |
| H-atom treatment | H-atom parameters constrained |
| Δρmax, Δρmin (e Å−3) | 0.87, −0.63 |
Computer programs: COLLECT (Nonius, 2000), DENZO and SCALEPACK (Otwinowski & Minor, 1997), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 1997), WinGX (Farrugia, 1999).


journal menu








Alert level C
Alert level G
![[Figure 1]](http://journals.iucr.org/e/issues/2012/08/00/zj2089/zj2089fig1thm.gif)
![[Figure 2]](http://journals.iucr.org/e/issues/2012/08/00/zj2089/zj2089fig2thm.gif)




The crystal structure of the title compound at 298 K is monoclinic, P21/c, Z = 4, a = 9.743 (3), b = 15.523 (3), c = 16.575 (2) Å, β = 100.11 (2)°, in agreement with the published room-temperature structure (Jaud et al., 1993. CCDC refcode YASKOS, Allen, 2002). Upon cooling to 90 K, the material undergoes a phase change to triclinic (P1) and a volume contraction of 2%. The two crystallographically independent enantiomers chosen for the asymmetric unit are propeller-like with opposite pitch (Δ, Ia and Λ, Ib). Both display near twofold symmetry, with average off-symmetry bond-length/bond-angle deviations of 0.0018 (4) Å/0.41 (2)° (Ia) and 0.0026 (4) Å/0.50 (2)° (Ib). The bond lengths and bond angles are normal and are essentially as described by Jaud et al. (1993).