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Cadmium(II) complexes of thiones and thiocyanate, [(4C¼S) 2 Cd(SCN) 2 ], have been prepared and characterized by IR and NMR spectroscopy. An upfield shift in the 4C¼S resonance of thiones in the 13 C NMR and downfield shift in N-H resonance in 1 H NMR are consistent with sulfur coordination to cadmium(II). The presence of (N-H) of thiones in IR spectra of the complexes indicates the thione forms of the ligands in the solid state; some contribution of the thiolate form was observed in one complex. The appearance of a band around 2100 cm À1 in IR and a resonance around 132 ppm in 13 C NMR indicates the binding of thiocyanate to cadmium(II).

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