title: (R)-(6,6'-Dihydroxybiphenyl-2,2'-diyl)bis(diphenylphosphine oxide) methanol solvate.
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.
authors.affiliation: Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, People's Republic of China. liqinqiu@hotmail.com
authors.forename: Li Qin
authors.initials: LQ
authors.lastname: Qiu
authors.forename: Jian Ying
authors.initials: JY
authors.lastname: Qi
authors.forename: Jian Xin
authors.initials: JX
authors.lastname: Ji
authors.forename: Zhong Yuan
authors.initials: ZY
authors.lastname: Zhou
authors.forename: Chi Hung
authors.initials: CH
authors.lastname: Yeung
authors.forename: Michael C K
authors.initials: MC
authors.lastname: Choi
authors.forename: Albert S C
authors.initials: AS
authors.lastname: Chan