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The reactions of [PPh4][(h5-C5Me5)WS3] with four equiv of CuBr in DMF gave rise to a new cluster salt [Cu(DMF)6][(h5-C5Me5)WS3(CuBr)3]2稥t2O 1. The crystal structure of 1 (C42H76N6O7Br6Cu7S6W2, Mr = 2261.40) was determined by single-crystal X-ray diffraction analysis. The crystal belongs to orthorhombic, space group Pbcm with a = 9.419(1), b = 28.237(1), c = 16.488(3) ? V = 7054.6(8) 3, Z = 4, Dc = 2.129 g/cm3, F(000) = 4332, m (Mo Ka) = 89.46 cm-1 and T = 193 K. With the use of 5746 observed reflections (I > 3.0s(I)), the structure was refined to R = 0.045 and Rw = 0.060. 1 is composed of one [(h5-C5Me5)WS3(CuBr)3]22- dianion, one [Cu(DMF)6]2+ cation and one Et2O solvent molecule. The cluster dianion contains two incomplete-cubane (h5-C5Me5)WS3(CuBr)3 fragments connected by a pair of CuBrCu bridges to form a double incomplete-cubane structure. The range of WCu distance is 2.657(1)~2.677(2) ?in the W2Cu6S6 cluster core.
The reactions of [PPh4] [(h5-C5Me5) WS3] with four equiv of CuBr in DMF gave rise to a new cluster salt [Cu (DMF) 6] [h5-C5Me5) WS3 (CuBr) 3] 1. The crystal structure of 1 (C42H76N6O7Br6Cu7S6W2, Mr = 2261.40) was determined by single-crystal X-ray diffraction analysis. The crystal belongs to orthorhombic space group Pbcm with a = 9.419 (1), b = 28.237 C = 16.488 (3)? V = 7054.6 (8) 3, Z = 4, Dc = 2.129 g / cm3, F (000) = 4332, m (Mo Ka) = 89.46 cm-1 and T = 193 K. With the use of 5746 observed reflections (I> 3.0s (I)), the structure was refined to R = 0.045 and Rw = 0.060. 1 is composed of one [(h5- C5Me5) WS3 (CuBr) one [Cu (DMF) 6] 2+ cation and one Et2O solvent molecule. The cluster dianion contains two incomplete-cubane (h5-C5Me5) WS3 (CuBr) 3 fragments connected by a pair of CuBrCu bridges to form a double incomplete-cubane The range of WCu distance is 2.657 (1) ~ 2.677 (2)? in the W2Cu6S6 cluster core.