Acta Cryst. (2009). E65, o560-o561  [ doi:10.1107/S1600536809005492 ]

2-Isobutyl-2-phosphabicyclo[3.3.1]nonane 2-selenide

P. N. Bungu and S. Otto

Abstract: The title compound, C₁₂H₂₃PSe, represents the first structure of a phosphine containing the bicyclic 2-phosphabicyclo[3.3.1]nonane (VCH) unit. It contains two chiral centres per molecule which can be either R,R- or S,S and crystallizes as a centrosymmetric, racemic micture of the enantiomers. The P-Se bond distance of 2.1360 (16) Å is typical for these compounds. The Tolman cone angle (2.28 Å from P) was calculated as 163°, and the effective cone angle (using the crystallographically determined P-Se bond distance) is 168°.

Online 21 February 2009

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