Four- and five-co-ordinate nickel(II) complexes with cis-(2-diphenylarsinovinyl)diphenylphosphine and 9,10-bis(diphenylphosphino)phenanthrene
- 1 January 1973
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 2,p. 147-151
- https://doi.org/10.1039/dt9730000147
Abstract
The preparation and complexing properties of the new bidentate ligands cis-(2-diphenylarsinovinyl)diphenylphosphine, vasp, and 9,10-bis(diphenylphosphino)phenanthrene, dpph, are reported. Four-co-ordinate [NiL2X2](L = vasp or dpph; X = Cl, Br, I, or NCS) and [NiL2](ClO4)2, and the square-pyramidal five-co-ordinate [Ni(vasp)2X]Y (X = Cl, Br, I, or NCS; Y = ClO4 or BPh4) and [Ni(dpph)2(NO3)]BPh4 were characterised by magnetic, spectral, and conductivity measurements. The effect of chelate backbone on the complexing properties and the stereochemical and spectrochemical properties of the complexes is discussed.Keywords
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