The Vibrational Spectra of Complexes with Planar Monothiooxamides. IV. The Copper(II) and Copper(I) Complexes of Neutral Monothiooxamides |
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| Authors: | E Manessi-Zoupa S P Perlepes A C Fabretti H O Desseyn |
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| Institution: | 1. Department of Chemistry , University of Patras , Patra, Greece;2. Department of Chemistry , University of Modena , Via Campi 183, 41100, Modena, Italy;3. Laboratorium voor Anorganische Scheikunde , Rijksuniversitair Centrum Antwerpen (RUCA) , Groenenborgerlaan 171, 2020, Antwerpen, Belgium |
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| Abstract: | The new complexes CuX2(LH2), CuX2 (SH3) (X = Cl, Br), CuX(LH2), CuX(SH3) (X = Cl, Br, I), CuX(H4MTO)2 (X = Cl, Br), Cul(H4MTO) and CuX(H3MMTO)2 (X = Cl, Br, I), where LH2 = N.N′-dimethyl-monothiooxamide, SH3 = N(s)-methylmonothiooxamide, H4MTO = monothiooxamide and H3MMTO = N(o)-methylmonothiooxamide, have been prepared. The complexes were characterized by elemental analyses, conductivity measurements, magnetic moments and spectroscopic (UV/VIS, FT-IR, Laser-Raman) studies. The vibrational analysis of the complexes has been given using NH/ND, CH3/CD3 and 63cu/65cu isotopic substitutions. The neutral monothiooxamides behave as monodentate ligands in the Cu(I) complexes coordinating through their thioamide sulfur atom. The ligands LH2 and SH3 act as bidentate chelating agents in the Cu(II) complexes with ligated atoms being the thioamide sulfur and the amide oxygen. |
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| Keywords: | Monothiooxamides Copper(II) complexes Copper(I) complexes Infrared spectra Raman spectra |
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