An unexpected co-crystal with a variable degree of order: 1:1 rac-1,2-cyclohexanediol/triphenylphos­phine oxide

Siegler, M.A.; Fu, Y.; Simpson, G.H.; King, D.P.; Parkin, S.; Brock, C.P.

doi:10.1107/S0108768107054699

Acta Crystallographica Section B
Acta Crystallographica
Section B STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS

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Figure 8
Perspective drawing showing ellipsoids determined at 90 K for the two independent TPPO molecules in a 1:1 co-crystal of rac-1,2-CHD and TPPO grown from toluene. The two molecules are related by the pseudo-glide plane of the approximate C2/c cell; the b_T = c_M axis is approximately horizontal. The correlation resulting from the pseudosymmetry is responsible for the displacement ellipsoids of some pairs of corresponding atoms being elongated in roughly orthogonal directions. The ellipsoids determined at 294 K are both larger and less eccentric.

STRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS

ISSN: 2052-5206

Volume 63| Part 6| November 2007| Pages 912-925

doi:10.1107/S0108768107054699

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