Three-centre hydrogen bonds in triphenylphosphine oxide-hydroquinone (1/1)
Moreno-Fuquen, R., Valderrama-N, J., Shankland, K., Fabbiani, F.P.A. and Markvardsen, A.J. (2008) Three-centre hydrogen bonds in triphenylphosphine oxide-hydroquinone (1/1). Acta Crystallographica Section E, 64 (2). O367-U1679 . ISSN 1600-5368
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To link to this article DOI: 10.1107/S1600536807067414
The title cocrystal, C18H15OP center dot C6H6O2, belongs to a series of molecular systems based on triphenylphosphine P-oxide. The O atom of the oxide group acts as an acceptor for hydrogen bonds from OH groups of two hydroquinone molecules which lie on inversion centres [O center dot center dot center dot O = 2.7451 (17) and 2.681 (2) A S]. The crystal structure is stabilized by weak C-H center dot center dot center dot O hydrogen bonds, forming a C-2(1)(8) chain which runs parallel to the  direction.
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