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Acta Crystallographica Section E: Structure Reports Online logoLink to Acta Crystallographica Section E: Structure Reports Online
. 2008 Aug 6;64(Pt 9):o1686. doi: 10.1107/S1600536808022010

(6aR,10aR)-6,6,9-Trimethyl-3-pentyl-6a,7,8,10a-tetra­hydro-6H-benzo[c]­chromen-1-yl 4-methyl­benzene­sulfonate

Waseem Gul a,b, Paulo Carvalho c, David W Berberich d, Mitchell A Avery c,e,f, Mahmoud A ElSohly b,g,*
PMCID: PMC2960686  PMID: 21201675

Abstract

In the crystal structure of the title compound, C28H36O4S, the p-tolyl ring is inclined at 35.8° to the aromatic ring. The cyclohexene ring adopts a boat conformation and the heterocyclic ring is in a slightly distorted screw boat conformation.

Related literature

For the physiological actions of tetra­hydro­cannabinol (Δ9—THC), the most psychologically active constituent of Cannabis sativa, see: Mechoulam & Gaoni (1967). For the synthesis of Δ9—THC-tosyl­ate, see: Duchek (2004).graphic file with name e-64-o1686-scheme1.jpg

Experimental

Crystal data

  • C28H36O4S

  • M r = 468.63

  • Orthorhombic, Inline graphic

  • a = 9.8759 (2) Å

  • b = 13.2996 (2) Å

  • c = 19.1500 (3) Å

  • V = 2515.27 (7) Å3

  • Z = 4

  • Cu Kα radiation

  • μ = 1.39 mm−1

  • T = 100 K

  • 0.19 × 0.17 × 0.16 mm

Data collection

  • Bruker SMART CCD area-detector diffractometer

  • Absorption correction: none

  • 47731 measured reflections

  • 4562 independent reflections

  • 4438 reflections with I > 2σ(I)

  • R int = 0.034

Refinement

  • R[F 2 > 2σ(F 2)] = 0.026

  • wR(F 2) = 0.069

  • S = 1.04

  • 4562 reflections

  • 303 parameters

  • H-atom parameters constrained

  • Δρmax = 0.25 e Å−3

  • Δρmin = −0.24 e Å−3

  • Absolute structure: Flack (1983), 1965 Friedel pairs

  • Flack parameter: 0.023 (11)

Data collection: SMART (Bruker, 2005); cell refinement: SAINT (Bruker, 2003); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.

Supplementary Material

Crystal structure: contains datablocks I, global. DOI: 10.1107/S1600536808022010/nc2105sup1.cif

e-64-o1686-sup1.cif (22.8KB, cif)

Structure factors: contains datablocks I. DOI: 10.1107/S1600536808022010/nc2105Isup2.hkl

e-64-o1686-Isup2.hkl (223.5KB, hkl)

Additional supplementary materials: crystallographic information; 3D view; checkCIF report

Acknowledgments

The authors thank Desmond Slade, John R. Duchek and David J. Kimmich for their valuable contributions, and the Center for Disease Control and Prevention, USA, for providing financial assistance (CDC cooperative agreements 1UO1 CI000211-03 and 1UO1 CI000362-01). This investigation was conducted in a facility constructed with support from Research Facilities Improvement Program grant No. C06 Rr-14503-01 from the National Center for Research Resources, National Institutes of Health. The project was also supported in part by the National Institute on Drug Abuse, contract No. N01DA-5-7746.

supplementary crystallographic information

Experimental

Δ9 – Tetrahydrocannabinol tosylate (p-tosyl-Δ9—THC), was synthesized according to Duchek (2004).

Refinement

All H atoms were located in difference maps and treated as riding atoms, with the following distance restraints: C—H = 0.93 Å, Uiso=1.2Ueq (C) for Csp2, C—H = 0.98 Å, Uiso = 1.2Ueq (C) for CH, C—H = 0.97 Å, Uiso = 1.2Ueq (C) for CH2, C—H = 0.96 Å, Uiso = 1.5Ueq (C) for CH3.

Figures

Fig. 1.

Fig. 1.

Crystal structure of the title compound with labelling and displacement ellipsoids drawn at the 50% probability level.

Crystal data

C28H36O4S F000 = 1008
Mr = 468.63 Dx = 1.238 Mg m3
Orthorhombic, P212121 Cu Kα radiation λ = 1.54178 Å
Hall symbol: P 2ac 2ab Cell parameters from 9942 reflections
a = 9.8759 (2) Å θ = 4.1–67.4º
b = 13.2996 (2) Å µ = 1.39 mm1
c = 19.1500 (3) Å T = 100 K
V = 2515.27 (7) Å3 Blocks, colourless
Z = 4 0.19 × 0.17 × 0.16 mm

Data collection

Bruker SMART CCD area-detector diffractometer 4438 reflections with I > 2σ(I)
Monochromator: graphite Rint = 0.034
T = 100 K θmax = 68.0º
φ and ω scans θmin = 4.1º
Absorption correction: none h = −11→11
47731 measured reflections k = −15→15
4562 independent reflections l = −23→23

Refinement

Refinement on F2 Hydrogen site location: inferred from neighbouring sites
Least-squares matrix: full H-atom parameters constrained
R[F2 > 2σ(F2)] = 0.027   w = 1/[σ2(Fo2) + (0.0429P)2 + 0.4744P] where P = (Fo2 + 2Fc2)/3
wR(F2) = 0.069 (Δ/σ)max = 0.002
S = 1.04 Δρmax = 0.25 e Å3
4562 reflections Δρmin = −0.24 e Å3
303 parameters Extinction correction: none
Primary atom site location: structure-invariant direct methods Absolute structure: Flack (1983), 1965 Friedel pairs
Secondary atom site location: difference Fourier map Flack parameter: 0.023 (11)

Special details

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 takeninto account individually in the estimation of e.s.d.'s in distances, anglesand torsion angles; correlations between e.s.d.'s in cell parameters are onlyused 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 andgoodness of fit S are based on F2, conventional R-factors R are basedon F, with F set to zero for negative F2. The threshold expression ofF2 > σ(F2) is used only for calculating R-factors(gt) etc. and isnot relevant to the choice of reflections for refinement. R-factors basedon 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)

x y z Uiso*/Ueq
S1 0.46490 (3) 0.05656 (2) 1.076895 (17) 0.01846 (9)
C1 0.47927 (14) 0.18406 (10) 0.97409 (7) 0.0172 (3)
C2 0.47639 (14) 0.28371 (11) 0.99381 (7) 0.0187 (3)
H2 0.5205 0.3046 1.0342 0.022*
C3 0.40657 (14) 0.35294 (11) 0.95249 (7) 0.0186 (3)
C4 0.34101 (15) 0.31759 (11) 0.89315 (7) 0.0189 (3)
H4 0.2911 0.3621 0.8659 0.023*
C7 0.39042 (17) −0.07962 (11) 0.78957 (8) 0.0262 (3)
H7A 0.3350 −0.1182 0.8216 0.031*
H7B 0.3527 −0.0869 0.7431 0.031*
C9 0.61971 (16) −0.07895 (11) 0.84941 (8) 0.0244 (3)
C10 0.57509 (15) −0.00757 (11) 0.89264 (7) 0.0207 (3)
H10 0.6326 0.0152 0.9277 0.025*
C8 0.53477 (18) −0.11963 (12) 0.79053 (8) 0.0291 (3)
H8A 0.5319 −0.1923 0.7941 0.035*
H8B 0.5780 −0.1029 0.7466 0.035*
C6 0.25642 (15) 0.08708 (11) 0.79805 (8) 0.0213 (3)
C4A 0.34857 (14) 0.21680 (11) 0.87368 (7) 0.0184 (3)
C10A 0.43477 (14) 0.03799 (10) 0.88715 (7) 0.0189 (3)
H10A 0.3732 −0.0034 0.9152 0.023*
C10B 0.42230 (14) 0.14608 (10) 0.91271 (7) 0.0178 (3)
C19 0.40283 (15) 0.14829 (10) 1.13478 (7) 0.0176 (3)
C20 0.47260 (15) 0.16732 (11) 1.19667 (7) 0.0208 (3)
H20 0.5532 0.1340 1.2065 0.025*
C24 0.28354 (15) 0.19860 (11) 1.11914 (7) 0.0199 (3)
H24 0.2371 0.1851 1.0779 0.024*
C21 0.42018 (16) 0.23624 (12) 1.24306 (8) 0.0228 (3)
H21 0.4649 0.2478 1.2850 0.027*
C14 0.40301 (15) 0.46315 (10) 0.97123 (7) 0.0216 (3)
H14A 0.4323 0.4713 1.0193 0.026*
H14B 0.3105 0.4872 0.9679 0.026*
C11 0.13920 (16) 0.05062 (12) 0.84292 (8) 0.0264 (3)
H11A 0.1622 0.0579 0.8914 0.040*
H11B 0.1214 −0.0189 0.8329 0.040*
H11C 0.0600 0.0898 0.8328 0.040*
C23 0.23487 (16) 0.26903 (11) 1.16577 (8) 0.0221 (3)
H23 0.1559 0.3040 1.1551 0.027*
C22 0.30153 (15) 0.28894 (11) 1.22843 (8) 0.0210 (3)
C18 0.5664 (2) 0.77077 (13) 1.03217 (10) 0.0409 (5)
H18A 0.5992 0.8127 0.9951 0.061*
H18B 0.6205 0.7812 1.0732 0.061*
H18C 0.4738 0.7876 1.0422 0.061*
C25 0.24424 (18) 0.36377 (13) 1.27916 (9) 0.0301 (4)
H25A 0.1675 0.3349 1.3025 0.045*
H25B 0.2166 0.4231 1.2544 0.045*
H25C 0.3121 0.3812 1.3130 0.045*
C15 0.49335 (15) 0.52705 (10) 0.92386 (8) 0.0227 (3)
H15A 0.4620 0.5208 0.8761 0.027*
H15B 0.5852 0.5013 0.9258 0.027*
C17 0.57512 (18) 0.66107 (12) 1.01015 (9) 0.0293 (4)
H17A 0.5419 0.6191 1.0479 0.035*
H17B 0.6693 0.6438 1.0022 0.035*
C16 0.49424 (17) 0.63855 (11) 0.94437 (8) 0.0260 (3)
H16A 0.5317 0.6773 0.9060 0.031*
H16B 0.4016 0.6606 0.9513 0.031*
C12 0.21926 (17) 0.08792 (12) 0.72084 (8) 0.0273 (3)
H12A 0.1454 0.1336 0.7133 0.041*
H12B 0.1928 0.0215 0.7067 0.041*
H12C 0.2961 0.1091 0.6939 0.041*
O2 0.55008 (10) 0.11806 (7) 1.01992 (5) 0.0185 (2)
O3 0.56579 (11) −0.00225 (8) 1.11089 (5) 0.0271 (2)
O4 0.35208 (11) 0.00985 (8) 1.04341 (5) 0.0240 (2)
C13 0.75923 (18) −0.12306 (14) 0.85622 (9) 0.0344 (4)
H13A 0.8061 −0.0908 0.8940 0.052*
H13B 0.8084 −0.1127 0.8136 0.052*
H13C 0.7523 −0.1938 0.8654 0.052*
C6A 0.38882 (15) 0.03099 (10) 0.81073 (7) 0.0201 (3)
H6A 0.4582 0.0647 0.7827 0.024*
O1 0.28074 (11) 0.19339 (8) 0.81346 (5) 0.0207 (2)

Atomic displacement parameters (Å2)

U11 U22 U33 U12 U13 U23
S1 0.02166 (17) 0.01704 (15) 0.01669 (15) 0.00077 (14) 0.00114 (13) 0.00015 (13)
C1 0.0154 (7) 0.0200 (7) 0.0162 (6) −0.0006 (6) 0.0033 (5) 0.0013 (5)
C2 0.0174 (7) 0.0236 (7) 0.0149 (6) −0.0041 (6) 0.0019 (5) −0.0024 (5)
C3 0.0178 (7) 0.0188 (7) 0.0191 (7) −0.0019 (6) 0.0064 (5) −0.0007 (5)
C4 0.0189 (7) 0.0188 (7) 0.0190 (7) −0.0008 (6) 0.0023 (5) 0.0015 (6)
C7 0.0351 (9) 0.0208 (8) 0.0227 (7) −0.0001 (7) −0.0047 (6) −0.0053 (6)
C9 0.0272 (8) 0.0229 (8) 0.0231 (7) 0.0022 (6) 0.0012 (6) −0.0001 (6)
C10 0.0240 (7) 0.0203 (7) 0.0177 (6) 0.0003 (6) −0.0006 (5) −0.0013 (6)
C8 0.0382 (9) 0.0228 (7) 0.0263 (8) 0.0047 (7) 0.0008 (7) −0.0079 (6)
C6 0.0252 (8) 0.0166 (7) 0.0221 (7) −0.0025 (6) −0.0026 (6) −0.0028 (5)
C4A 0.0174 (7) 0.0215 (7) 0.0162 (7) −0.0024 (6) 0.0029 (5) −0.0014 (5)
C10A 0.0221 (7) 0.0184 (7) 0.0161 (6) −0.0019 (6) 0.0006 (5) −0.0014 (5)
C10B 0.0172 (7) 0.0182 (7) 0.0179 (7) −0.0019 (5) 0.0027 (5) −0.0010 (5)
C19 0.0195 (7) 0.0185 (7) 0.0148 (6) −0.0010 (6) 0.0024 (5) 0.0011 (5)
C20 0.0174 (7) 0.0258 (7) 0.0193 (7) 0.0010 (6) −0.0017 (6) 0.0014 (5)
C24 0.0197 (7) 0.0230 (7) 0.0169 (7) −0.0010 (6) −0.0026 (6) 0.0006 (5)
C21 0.0223 (8) 0.0286 (8) 0.0175 (7) −0.0048 (6) −0.0032 (6) −0.0024 (6)
C14 0.0220 (7) 0.0203 (7) 0.0225 (7) −0.0008 (6) 0.0022 (6) −0.0038 (5)
C11 0.0233 (8) 0.0255 (7) 0.0303 (8) −0.0017 (7) −0.0014 (6) −0.0008 (6)
C23 0.0197 (7) 0.0242 (7) 0.0225 (7) 0.0039 (6) −0.0001 (6) 0.0031 (6)
C22 0.0224 (8) 0.0187 (7) 0.0220 (7) −0.0032 (6) 0.0024 (6) 0.0006 (6)
C18 0.0586 (13) 0.0257 (8) 0.0384 (10) −0.0098 (8) 0.0003 (9) −0.0062 (7)
C25 0.0326 (9) 0.0304 (8) 0.0273 (8) 0.0026 (7) −0.0007 (7) −0.0070 (7)
C15 0.0264 (7) 0.0193 (7) 0.0224 (7) −0.0013 (6) 0.0000 (6) −0.0009 (6)
C17 0.0332 (9) 0.0217 (8) 0.0329 (9) −0.0040 (7) −0.0023 (7) −0.0014 (6)
C16 0.0321 (9) 0.0176 (7) 0.0284 (8) −0.0006 (6) −0.0016 (6) 0.0021 (6)
C12 0.0336 (9) 0.0248 (7) 0.0235 (8) 0.0005 (7) −0.0070 (6) −0.0050 (6)
O2 0.0180 (5) 0.0210 (5) 0.0164 (5) 0.0007 (4) 0.0003 (4) −0.0004 (4)
O3 0.0329 (6) 0.0244 (5) 0.0242 (5) 0.0065 (5) 0.0008 (4) 0.0025 (4)
O4 0.0277 (6) 0.0222 (5) 0.0220 (5) −0.0061 (4) 0.0039 (4) −0.0029 (4)
C13 0.0325 (9) 0.0362 (9) 0.0346 (9) 0.0108 (7) 0.0016 (7) −0.0088 (7)
C6A 0.0232 (8) 0.0195 (7) 0.0175 (7) −0.0032 (6) 0.0007 (6) −0.0031 (5)
O1 0.0271 (5) 0.0172 (5) 0.0179 (5) −0.0009 (4) −0.0047 (4) −0.0017 (4)

Geometric parameters (Å, °)

S1—O3 1.4243 (11) C20—H20 0.9300
S1—O4 1.4277 (11) C24—C23 1.380 (2)
S1—O2 1.6022 (10) C24—H24 0.9300
S1—C19 1.7586 (14) C21—C22 1.394 (2)
C1—C2 1.3783 (19) C21—H21 0.9300
C1—C10B 1.3976 (19) C14—C15 1.5301 (19)
C1—O2 1.4247 (17) C14—H14A 0.9700
C2—C3 1.396 (2) C14—H14B 0.9700
C2—H2 0.9300 C11—H11A 0.9600
C3—C4 1.390 (2) C11—H11B 0.9600
C3—C14 1.5095 (19) C11—H11C 0.9600
C4—C4A 1.393 (2) C23—C22 1.394 (2)
C4—H4 0.9300 C23—H23 0.9300
C7—C8 1.522 (2) C22—C25 1.501 (2)
C7—C6A 1.5260 (19) C18—C17 1.521 (2)
C7—H7A 0.9700 C18—H18A 0.9600
C7—H7B 0.9700 C18—H18B 0.9600
C9—C10 1.335 (2) C18—H18C 0.9600
C9—C13 1.503 (2) C25—H25A 0.9600
C9—C8 1.506 (2) C25—H25B 0.9600
C10—C10A 1.516 (2) C25—H25C 0.9600
C10—H10 0.9300 C15—C16 1.5341 (19)
C8—H8A 0.9700 C15—H15A 0.9700
C8—H8B 0.9700 C15—H15B 0.9700
C6—O1 1.4643 (17) C17—C16 1.521 (2)
C6—C11 1.521 (2) C17—H17A 0.9700
C6—C12 1.523 (2) C17—H17B 0.9700
C6—C6A 1.525 (2) C16—H16A 0.9700
C4A—O1 1.3694 (17) C16—H16B 0.9700
C4A—C10B 1.405 (2) C12—H12A 0.9600
C10A—C10B 1.5236 (18) C12—H12B 0.9600
C10A—C6A 1.5350 (18) C12—H12C 0.9600
C10A—H10A 0.9800 C13—H13A 0.9600
C19—C24 1.388 (2) C13—H13B 0.9600
C19—C20 1.394 (2) C13—H13C 0.9600
C20—C21 1.377 (2) C6A—H6A 0.9800
O3—S1—O4 120.81 (7) C3—C14—H14A 109.1
O3—S1—O2 102.96 (6) C15—C14—H14A 109.1
O4—S1—O2 109.03 (6) C3—C14—H14B 109.1
O3—S1—C19 109.68 (7) C15—C14—H14B 109.1
O4—S1—C19 108.24 (7) H14A—C14—H14B 107.8
O2—S1—C19 104.96 (6) C6—C11—H11A 109.5
C2—C1—C10B 124.73 (13) C6—C11—H11B 109.5
C2—C1—O2 115.71 (12) H11A—C11—H11B 109.5
C10B—C1—O2 119.53 (12) C6—C11—H11C 109.5
C1—C2—C3 119.27 (13) H11A—C11—H11C 109.5
C1—C2—H2 120.4 H11B—C11—H11C 109.5
C3—C2—H2 120.4 C24—C23—C22 121.41 (14)
C4—C3—C2 118.06 (13) C24—C23—H23 119.3
C4—C3—C14 120.79 (13) C22—C23—H23 119.3
C2—C3—C14 121.14 (13) C21—C22—C23 118.32 (14)
C3—C4—C4A 121.28 (14) C21—C22—C25 121.34 (14)
C3—C4—H4 119.4 C23—C22—C25 120.32 (14)
C4A—C4—H4 119.4 C17—C18—H18A 109.5
C8—C7—C6A 110.09 (13) C17—C18—H18B 109.5
C8—C7—H7A 109.6 H18A—C18—H18B 109.5
C6A—C7—H7A 109.6 C17—C18—H18C 109.5
C8—C7—H7B 109.6 H18A—C18—H18C 109.5
C6A—C7—H7B 109.6 H18B—C18—H18C 109.5
H7A—C7—H7B 108.2 C22—C25—H25A 109.5
C10—C9—C13 121.77 (15) C22—C25—H25B 109.5
C10—C9—C8 122.42 (14) H25A—C25—H25B 109.5
C13—C9—C8 115.81 (13) C22—C25—H25C 109.5
C9—C10—C10A 122.90 (14) H25A—C25—H25C 109.5
C9—C10—H10 118.6 H25B—C25—H25C 109.5
C10A—C10—H10 118.6 C14—C15—C16 112.86 (12)
C9—C8—C7 113.91 (13) C14—C15—H15A 109.0
C9—C8—H8A 108.8 C16—C15—H15A 109.0
C7—C8—H8A 108.8 C14—C15—H15B 109.0
C9—C8—H8B 108.8 C16—C15—H15B 109.0
C7—C8—H8B 108.8 H15A—C15—H15B 107.8
H8A—C8—H8B 107.7 C18—C17—C16 112.87 (14)
O1—C6—C11 108.59 (12) C18—C17—H17A 109.0
O1—C6—C12 103.19 (12) C16—C17—H17A 109.0
C11—C6—C12 111.55 (13) C18—C17—H17B 109.0
O1—C6—C6A 107.43 (11) C16—C17—H17B 109.0
C11—C6—C6A 114.00 (12) H17A—C17—H17B 107.8
C12—C6—C6A 111.40 (12) C17—C16—C15 113.92 (13)
O1—C4A—C4 114.70 (13) C17—C16—H16A 108.8
O1—C4A—C10B 123.32 (13) C15—C16—H16A 108.8
C4—C4A—C10B 121.97 (13) C17—C16—H16B 108.8
C10—C10A—C10B 115.39 (12) C15—C16—H16B 108.8
C10—C10A—C6A 108.19 (11) H16A—C16—H16B 107.7
C10B—C10A—C6A 109.85 (11) C6—C12—H12A 109.5
C10—C10A—H10A 107.7 C6—C12—H12B 109.5
C10B—C10A—H10A 107.7 H12A—C12—H12B 109.5
C6A—C10A—H10A 107.7 C6—C12—H12C 109.5
C1—C10B—C4A 114.47 (13) H12A—C12—H12C 109.5
C1—C10B—C10A 125.35 (13) H12B—C12—H12C 109.5
C4A—C10B—C10A 120.18 (12) C1—O2—S1 118.44 (8)
C24—C19—C20 121.03 (13) C9—C13—H13A 109.5
C24—C19—S1 119.63 (11) C9—C13—H13B 109.5
C20—C19—S1 119.31 (11) H13A—C13—H13B 109.5
C21—C20—C19 118.91 (14) C9—C13—H13C 109.5
C21—C20—H20 120.5 H13A—C13—H13C 109.5
C19—C20—H20 120.5 H13B—C13—H13C 109.5
C23—C24—C19 118.90 (13) C6—C6A—C7 115.99 (12)
C23—C24—H24 120.5 C6—C6A—C10A 112.07 (12)
C19—C24—H24 120.5 C7—C6A—C10A 107.98 (12)
C20—C21—C22 121.40 (14) C6—C6A—H6A 106.8
C20—C21—H21 119.3 C7—C6A—H6A 106.8
C22—C21—H21 119.3 C10A—C6A—H6A 106.8
C3—C14—C15 112.63 (12) C4A—O1—C6 118.01 (11)

Footnotes

Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: NC2105).

References

  1. Bruker (2003). SAINT Bruker AXS Inc., Madison, Wisconsin, USA.
  2. Bruker (2005). SMART Bruker AXS Inc., Madison, Wisconsin, USA.
  3. Duchek, J. R. (2004). US Patent No. 2006/0094774-A1.
  4. Flack, H. D. (1983). Acta Cryst. A39, 876–881.
  5. Mechoulam, R. & Gaoni, Y. (1967). Fortschr. Chem. Org. Naturst.25, 175–213. [DOI] [PubMed]
  6. Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. [DOI] [PubMed]

Associated Data

This section collects any data citations, data availability statements, or supplementary materials included in this article.

Supplementary Materials

Crystal structure: contains datablocks I, global. DOI: 10.1107/S1600536808022010/nc2105sup1.cif

e-64-o1686-sup1.cif (22.8KB, cif)

Structure factors: contains datablocks I. DOI: 10.1107/S1600536808022010/nc2105Isup2.hkl

e-64-o1686-Isup2.hkl (223.5KB, hkl)

Additional supplementary materials: crystallographic information; 3D view; checkCIF report


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