Synthesis and structures of diphosphinoamide complexes of nickel, palladium and platinum

Said, M, Hughes, DL and Bochmann, M (2005) Synthesis and structures of diphosphinoamide complexes of nickel, palladium and platinum. Polyhedron, 25 (4). pp. 843-852. ISSN 1873-3719

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Abstract

Lithium bis(diphenylphosphino)amide, (THF)3LiN(PPh2)2 reacts with Ni(COD)2 or PtMe2(COD) to give the corresponding bimetallic complexes (THF)3LiN(PPh2)2Ni(COD) and (THF)3LiN(PPh2)2PtMe2. Reaction of (THF)3LiN(PPh2)2Ni(COD) with Me3SnCl gave the Ni–Sn derivative, also accessible from Me3SnN(PPh2)2. The silyl derivatives Me3SiN(PPh2)2M [M = Ni(COD), PtMe2] were obtained similarly as red and colourless crystals, respectively. By contrast, the reaction with PdCl2(COD) afforded an insoluble yellow adduct which, on attempted recrystallisation afforded a small amount of a Pd(I) product, [PdCl{HN(PPh2)2}]2. The crystal structures of the Ni and Pt complexes are based on MP2N four-membered rings. The geometric parameters proved rather insensitive to changes in the N-main group element bond. In all cases the amido-nitrogen atom deviated slightly from trigonal-planar geometry, most probably as the consequence of packing forces.

Item Type: Article
Faculty \ School: Faculty of Science > School of Chemistry
University of East Anglia > Faculty of Science > Research Groups > Synthetic Chemistry
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Depositing User: Rachel Smith
Date Deposited: 02 Nov 2010 17:48
Last Modified: 25 Jul 2018 06:24
URI: https://ueaeprints.uea.ac.uk/id/eprint/10519
DOI: 10.1016/j.poly.2005.07.027

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