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Syntheses, crystal structure and spectroscopic characterization of new platinum(II) dithiocarbimato complexes |
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| Authors: | Raquel S. Amim, Marcelo R.L. Oliveira, Genivaldo J. Perp tuo, Jan Janczak, Liany D.L. Miranda,Mayura M.M. Rubinger |
| Affiliation: | aDepartamento de Química, Universidade Federal de Viçosa, Viçosa MG, CEP 36570-000, Brazil bDepartamento de Física, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, Ouro Preto MG, CEP 35400-000, Brazil cInstitute of Low Temperature and Structure Research, Polish Academy of Science, P.O. Box 1410, 50-950 Wrocław, Poland |
| Abstract: | The reaction of 4-iodobenzenesulfonamide or 4-fluorobenzenesulfonamide with CS2 and KOH in dimethylformamide yielded the potassium N-R-sulfonyldithiocarbimates, K2(RSO2NCS2) [R = 4-IC6H4 (1) and 4-FC6H4 (2)]. These salts reacted with K2[PtCl4] in water/methanol to yield complex anions bis(N-R-sulfonyldithiocarbimato)platinate(II), which were isolated as their tetrabutylammonium salts, (Bu4N)2[Pt(RSO2NCS2)2] [R = 4-IC6H4 (3) and 4-FC6H4 (4)]. The structures of 2–4 were determined by X-ray crystallography. The Pt2+ in both complexes 3 and 4 lies at the inversion centre and the PtS4 moiety has a distorted square-planar configuration. The compounds were also characterized by IR, 1H NMR and 13C NMR spectroscopies, and elemental analyses. The molar conductance data are consistent with the fact that 3 and 4 are dianionic complexes. |
| Keywords: | Dithiocarbimates Platinum complexes Crystal structures |
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