THE PREPARATION AND X-RAY CRYSTAL-STRUCTURE OF (PME)4SE3

S W HALL, M J PILKINGTON, A M Z SLAWIN, D J WILLIAMS, J D WOOLLINS

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

The reaction of (PMe)5 with grey selenium in refluxing toluene has been studied with a range of P: Se ratios. With exces selenium, P: Se = 1:2, (PMeSe2)2 is obtained, whereas when the reaction is performed with P: Se ratios of between 4:1 and 1:1, complex mixtures are obtained. (PMe)4Se3 (1) has been isolated and crystallographically characterized, it has a folded five-membered P4Se ring with the four phosphorus atoms coplanar. There are significant intermolecular non-bonded interactions between the exocyclic selenium atoms and the "vacant" tetrahedral site of the phosphorus(III) atoms.

Original languageEnglish
Pages (from-to)261-265
Number of pages5
JournalPolyhedron
Volume10
Issue number2
DOIs
Publication statusPublished - 1991

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