Heterocycle formation using [PhP(Se)(μ-Se)]2. The crystal structures of [PhP(Se)(μ-Se)]2, PhP(Se)Se2(C7H10) and PhP(Se)(μ-Se)(μ-NPh)P(Se)Ph
Abstract
An X-ray crystallographic study of [PhP(Se)(μ-Se)]21, the oxidation product of the homocycle (PhP)5 with ten equivalents of selenium, revealed that the molecule is centrosymmetric with a planar central P2(μ-Se)2 core and trans disposition of exocyclic PSe bonds. In the reaction of 1 with