Unexpected substitution reactions of bis (phosphine) platinum ethene complexes

PA Chaloner, GTL Broadwood-Strong

Index: Chaloner, Penny A.; Broadwood-Strong, Gillian T. L. Journal of the Chemical Society - Dalton Transactions, 1996 , # 6 p. 1039 - 1043

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Citation Number: 3

Abstract

Reaction of [Pt (C2H4)(PR3) 2](R= Ph or C6H4Me-4) with moderately bulky phosphines at low temperatures did not give the expected tris-or tetrakis-phosphine complexes. Instead, mixed-phosphine complexes of the type [Pt (C2H4)(PR3)(PR′ 3)](R′= C6H11, C6H4OMe- 4, C6H4OMe-2, C6H4Me-4 or CH2Ph) were formed. With less bulky phosphines, chelating diphosphines or phosphites, mixed tetrakis complexes, many of them prone to ...