*Method 1: Microwave Radiation*.

To a suspension of CuCl2·2H2O (3.56 mmol) in CH3CN (10 mL) was slowly added a solution of ligand (0.89 mmol) in CH3CN (10 mL). The mixture was irradiated for 10 min in a modified conventional microwave oven. After cooling (30 min), orange single crystals of **3** were obtained. Yield: 35%.

### *Method 2: Stirring at Room Temperature*.

To a solution of CuCl2·2H2O (0.9 mmol) in CH3CN (10 mL) was slowly added a solution of ligand (0.9 mmol) in CH3CN (10 mL). After stirring at room temperature for 24 h, an orange crystalline powder was filtered off under vacuum and dried. Yield: 47%.

Data for **3**: Yield: 35%. MP: 225–230 ◦C. Anal. calc. for C6H10Cl4N8S2Cu2 N 20.40%, C 13.75%, H 1.92%; Found: N 20.80%, C 13.70%, H 1.91%. IR (cm–1): 1473m, 1403m, 1384m, ν(ring); 1240m ω(CH,CH2); 1183m δ(CH); 1137w, 1090w, 1052w, δ(ring); 739m, γ(CH); 708vs ν(C–S).
