Abstract
Mononuclear copper(II) complexes with 2-[2-(alkylthio)ethylthio] ethanol, Cu(RSCH 2CH 2SCH 2CH 2OH)Cl 2 and Cu(RSCH 2CH 2SCH 2CH 2OH) 2(ClO 4) 2 (R = CH 3 and C 2H 5), and binuclear copper (II) complexes, Cu 2(RSCH 2CH 2SCH 2CH 2O) 2X 2(X = Cl and NO 3), were prepared and characterized by elemental analyses, infrared and electronic spectra, and magnetic susceptibilities. The magnetic data (80–300 K) of Cu 2(CH 3SCH 2CH 2SCH 2CH 2O) 2Cl 2 indicate that a strong antiferromagnetic interaction is operating between the copper ions. However, temperature dependence of magnetic susceptibilities of the other binuclear complexes do not obey the equation based on a binuclear model. The binuclear copper(II) complexes exhibit a band at 22–26 × 10 3 cm −1 characteristic of alkoxo-bridged structure. These results were compared with those of the complexes with 2-[2-(dialkylamino)ethylthio] ethanol, Cu 2(R 2NCH 2CH 2SCH 2CH 2O) 2X 2.
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