Hydrogen bonding in hydroxymethylphosphine chalcogenides
2002; Elsevier BV; Volume: 335; Linguagem: Inglês
10.1016/s0020-1693(02)00811-3
ISSN1873-3255
AutoresN.J. Goodwin, William Henderson, Brian K. Nicholson,
Tópico(s)Organophosphorus compounds synthesis
ResumoHydrogen bonding in the phosphine chalcogenide series Ph2P(X)CH2OH (X=O, 1; S, 2; Se, 3) has been investigated by single crystal X-ray crystallography. While the phosphine oxide exhibits a dimer motif, the sulfide and selenide form infinite chains; in all cases hydrogen bonding is from the OH group to the phosphine chalcogenide heteroatom. The trend in the hydrogen bond angle for OH⋯X–P, which is 117, 87 and 84° for the oxide, sulfide and selenide, respectively, is explained with respect to the geometry of electron density on the phosphine chalcogenide heteroatom.
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