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Australian Journal of Chemistry Australian Journal of Chemistry Society
An international journal for chemical science
RESEARCH ARTICLE

Preparation of Hybrid Bidentate Phosphine-Ligands by Reduction of Their Benzylphosphonium or Phenylphosphonium Salts - X-Ray Crystal-Structure of 2-Aminophenyltriphenylphosphonium Tetrachloronickelate(II)

MK Cooper, JM Downes, PA Duckworth and ERT Tiekink

Australian Journal of Chemistry 45(3) 595 - 609
Published: 1992

Abstract

The 2-substituted phenylphosphine bidentate hybrid ligands, 2-aminophenyl-, 2-methylamino- phenyl-, 2-hydroxphenyl- and (2-amino-3-methylpheny1)- diphenylphosphine , (1a-d), respectively, and 2-aminophenylmethylphenylphosphine, (le), were synthesized by reduction of their phenylphosphoniurn halides, (2a-e)X (X = Cl or Br), with sodium naphthalenide in tetrahydrofuran at -68º, or electrochemically at a mercury cathode. The phosphonium salts were prepared by reaction of triphenylphosphine with aryl halide and anhydrous nickel halide at 200º. X-Ray diffraction of (2a)2 [NiCl4] showed it to have monoclinic space group P21/n, a 10.657(4), b 20.966(3), c 20.422(6) Å , β101.33(2) and Z4. The structure was refined by a full-matrix least-squares procedure to a final R 0.050 for 3534 reflections with I

https://doi.org/10.1071/CH9920595

© CSIRO 1992

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