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Mono‐ und Diferriophosphane und ‐thioxophosphorane
Author(s) -
Lorenz IngoPeter,
Mürschel Petra,
Pohl Wolfgang,
Polborn Kurt
Publication year - 1995
Publication title -
chemische berichte
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 0009-2940
DOI - 10.1002/cber.19951280413
Subject(s) - chemistry , decarbonylation , deprotonation , medicinal chemistry , sulfur , sulfide , stereochemistry , crystallography , organic chemistry , catalysis , ion
Mono‐ and Diferriophosphanes and ‐thioxophosphoranes Herrn Professor Dr. Ekkehard Lindner zum 60. Geburtstag gewidmet. The substitution of organic substituents in phosphanes or thioxophosphoranes by the 17‐electron fragments CpFe‐(CO) 2 (Fp) leads to isolobal ferriophosphanes or ‐thioxophosphoranes. The mono‐ and diferriophosphanes Fp n PPh 3− n [ n = 1 ( 3 ), 2 ( 4 )] are obtained by deprotonation of the mono‐ and diferriophosphonium salts [Fp n PPh 3− n H]X [ n = 1 ( 1 ), 2 ( 2 )] with DBU. They are oxidized by sulfur giving the mono‐ and diferriothioxophosphoranes Fp n PPh 3− n (S) [ n = 1 ( 5 ), 2 ( 6 )]. Sulfide 5 arises also from the reaction of CpFe(CO) 2 Cl and Ph 2 PH(S)/DBU. The one‐sided decarbonylation reaction of 6 leads to FpFp′PPh(S) ( 7 , Fp′ = CpFeCO). The Fp substituents (17 electrons) in 3–7 coordinate as one‐electron donors to the Ph n P‐ or Ph n P(S) units ( n = 1, 2). The bridging functions in 4 and 6 are hitherto unknown. The molecular structures of the complexes 5–7 were determined by X‐ray structure analyses.