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(R)-(6,6'-Dihydroxybiphenyl-2,2'-diyl)bis(diphenylphosphine oxide) methanol solvate
Li Qin Qiu1, Jian Ying Qi, Jian Xin Ji
1Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, People's Republic of China. liqinqiu@hotmail.com
Abstract:
The title compound, C(36)H(28)O(4)P(2).CH(4)O, was synthesized directly from the methoxy analogue. The crystal structure shows that one OH group interacts with an O atom of a phosphine oxide group in an adjacent molecule, while the other OH group complexes with the methanol solvent molecule via intermolecular hydrogen bonds. An O atom of one phosphine oxide group interacts with the hydroxy H atom of methanol via a hydrogen bond. There are intra- and intermolecular pi-pi interactions between the phenyl rings. All these interactions result in the formation of supramolecular chiral parallelogram channels via self-assembly.