Synthesis and structure of rare zwitterionic complexes involving the presence of N(py)MCl3 moieties (M = Pt(II), Pd(II))
The monocation 2,3-dicyano-5-[(N-methyl)-2-pyridyl}-6-(2-pyridyl)pyrazine, [(CN)2(2-Mepy)PyPyz]+ (1) reacts, as the iodide salt (2), under mild experimental conditions, with dichloro-di(benzonitrile)platinum(II), [(C6H5CN)2PtCl2], forming trans-diiodo-di(benzonitrile)platinum(II), [(C6H5CN)2PtI2] (3), and the complex [(CN)2Py(2-Mepy)PyzPtCl3]∙CH3CN (4), both structurally elucidated by single-crystal X-ray work.