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Royal Society of Chemistry, Chemical Communications, 21, p. 2478

DOI: 10.1039/b409673h

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A new synthetic entry to phosphinophosphinidene complexes. Synthesis and structural characterisation of the first side-on bonded and the first terminally bonded phosphinophosphinidene zirconium complexes [μ-(1,2∶2-η-tBu2PP){Zr(Cl)Cp2}2] and [{Zr(PPhMe2)Cp2}(η1-P–PtBu2)]

Journal article published in 2004 by Jerzy Pikies, Elke Baum, Eberhard Matern, Jarosław Chojnacki, Rafał Grubba ORCID, Andrzej Robaszkiewicz
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

The reactions of lithiated diphosphanes with transition metal chlorides constitute a new general entry to phosphinophosphinidene complexes: the reaction of Cp2ZrCl2 (Cp=C5H5) with (Bu2P)-Bu-t-P(SiMe3)Li (molar ratio similar to1:1) yields [mu-(1,2:2-eta-(Bu2P)-Bu-t=P){Zr(Cl)Cp-2}(2)]; the reaction of Cp2ZrCl2 with (Bu2P)-Bu-t-P(SiMe3)Li (molar ratio similar to1:2) and an excess of PPhMe2 in DME yields the first terminally bonded phosphinophosphinidene complex, [{Zr(PPhMe2)Cp-2}(eta(1)-P-(PBu2)-Bu-t)].