Acta Cryst. (2004). E60, o607-o609  [ doi:10.1107/S1600536804005768 ]

Conspicuous hydrogen bonds linking (R,R)-3',3''-bisBINOL, methyl 2-methylphenyl (R)-sulfoxide and chloroform in the 1:2:1 complex

K. Ishizuka, T. Kawanami, H. Furuno and J. Inanaga

Abstract: The asymmetric unit of the crystal structure of the title compound, C₄₀H₂₆O₄·2C₈H₁₀OS·CHCl₃, consists of one molecule of (R,R)-3',3''-bisBINOL [(R,R)-1,1':3',3'':1,1-quater-2-naphthol], two molecules of methyl 2-methylphenyl (R)-sulfoxide and one molecule of chloroform. The central feature of the structure is the two sets of O-HOH-O hydrogen bonds, linking pairs of hydroxy groups of (R,R)-3',3''-bisBINOL via the sulfoxide O atoms and thus forming an 18-membered pseudo-macrocycle involving one bisBINOL and two sulfoxide molecules. The chloroform molecule is linked to one of the hydroxy O atoms of the bisBINOL via a C-HO interaction.

Online 24 March 2004

Copyright © International Union of Crystallography
IUCr Webmaster