Coordination complexes of gallium(III) and indium(III) halides. V. Trialkyl and mixed alkyl–aryl phosphine complexes of indium(III) chloride, bromide, and iodide

Abstract

The new complexes InX3L (X = Cl, Br, I; L = tricyclohexylphosphine), InX3L2 (X = Cl, Br, I; L = trimethylphosphine, triethylphosphine, dimethylphenylphosphine), InX3L2 (X = Cl, Br, L = diphenylethylphosphine), InX3L3 (X = Cl, Br; L = dimethylphenylphosphine) have been prepared and characterized by far-infrared, Raman, and molecular weight studies. Structures of the types trans trigonal bipyramidal InX3L2 and C3υ ψ-tetrahedral InX3L can be readily characterized by virtue of their typical infrared and Raman spectra. Nuclear magnetic resonance chemical shifts and coupling constants for adducts of trimethylphosphine, triethylphosphine, dimethylphenylphosphine, and diphenylethylphosphine are discussed.