Mercury(II) cyanide complexes of bulky phosphines. Preparation, characterization, and spectral studies

Publisher Website
Google Scholar
Abstract
Mercury(II) cyanide forms 1:2 complexes with triphenylphosphine and tri-p-tolylphosphine. Both 1:1 and 1:2 complexes are formed with tricyclohexylphosphine but only the 1:1 complex is obtained with tri-tert-butylphosphine, and no complex is formed with tri-o-tolylphosphine. The complexes have been characterized by elemental analyses and by infrared and Raman spectral measurements. Their behaviour in solution has been investigated by conductance, molecular weight, and 31P nmr measurements. The infrared and Raman data for the 1:2 complexes are in accord with a pseudotetrahedral structure of C2v skeletal symmetry. At least one of the 1:1 complexes is indicated to have a dimeric structure involving terminal and bridging CN ligands. The C≡N, Hg—CN, and Hg—P stretching frequencies and the 31P—199Hg spin–spin coupling for the complexes are discussed.

This publication has 0 references indexed in Scilit: