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DOI: 10.1039/A903249E (Paper) Reference Section for: Chem. Commun., 1999, 1471-1472

Coordination and oxidation of phosphine selenides with iodine: from cation pairs [(R3PSe)2I+]2 to (iodoseleno)phosphonium ions [R3PSeI]+ existing as guests in polyiodide matrices

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Emma Seppälä, Frank Ruthe, Jörg Jeske, Wolf-W. du Mont and Peter G. Jones

Abstract

An X-ray crystallographic study of adducts of trialkylphosphine selenides with >1 equivalent of diiodine reveals that solid But3PSeI3 consists of cation pairs [(But3PSe)2I+]2 intercalated between I5– layers and that solid R2R′PSeI7 (R = But or Pri, R′ = Pri) contains [R2R′P–Se–I]+ cations with weak secondary I‥I interactions to polyiodide networks.

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