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Issue 21, 2004
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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[double bond, length as m-dash]P){Zr(Cl)Cp2}2] and [{Zr(PPhMe2)Cp2}(η1-P–PtBu2)]

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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 tBu2P–P(SiMe3)Li (molar ratio ∼1 ∶ 1) yields [μ-(1,2∶2-η-tBu2P[double bond, length as m-dash]P){Zr(Cl)Cp2}2]; the reaction of Cp2ZrCl2 with tBu2P–P(SiMe3)Li (molar ratio ∼1 ∶ 2) and an excess of PPhMe2 in DME yields the first terminally bonded phosphinophosphinidene complex, [{Zr(PPhMe2)Cp2}(η1-P–PtBu2)].

Graphical abstract: 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 [[double bond, length as m-dash]] P){Zr(Cl)Cp2}2] and [{Zr(PPhMe2)Cp2}(η1-P–PtBu2)]

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Publication details

The article was received on 25 Jun 2004, accepted on 12 Aug 2004 and first published on 16 Sep 2004


Article type: Communication
DOI: 10.1039/B409673H
Citation: Chem. Commun., 2004,0, 2478-2479
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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[double bond, length as m-dash]P){Zr(Cl)Cp2}2] and [{Zr(PPhMe2)Cp2}(η1-P–PtBu2)]

    J. Pikies, E. Baum, E. Matern, J. Chojnacki, R. Grubba and A. Robaszkiewicz, Chem. Commun., 2004, 0, 2478
    DOI: 10.1039/B409673H

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