Syntheses and Spectroscopic Characterization on New [O–3- phenyl-1-propyl-(4-methoxyphenyl)dithiophosphonato] Ni(II), Cd(II) and Hg(II) Complexes

Abstract

Four new [(R)(OR’)dithiophosphonato] metal complexes (Metal= Ni(II), Cd(II) andHg(II)) were synthesized (R= 4-methoxyphenyl-, R’= O–3-phenyl-1-propyl-). The complexes wereof the general structure [Ni((R)(OR’))2], [Cd{μ-(R)(OR’)}2{(R)(OR’)}2] and [Hg{μ-(R)(OR’)}2{(R)(OR’)}2]. [Ni((R)(OR’))2] was capable of coordinating two moles of pyridine per moleas many four-coordinated nickel(II) complex do leading to the six-coordinated complex,[Ni((R)(OR’))2(Py)2]. The structures of the complexes were investigated by elemental analysisalong with mass spectra; FTIR and Raman spectroscopies. Further evidence for the structures of[Ni((R)(OR’))2], [Cd{μ-(R)(OR’)}2{(R)(OR’)}2] and [Hg{μ-(R)(OR’)}2{(R)(OR’)}2] were alsoobtained through 1H-, 13C- and 31P-NMR studies. The magnetic susceptibility of the pyridine nickelcomplex was measured to verify the hybridization patterns and the geometry.