Abstract
AbstractTwo novel trinuclear tin oxo clusters [(C2S3N2)R6Sn3O(OH)Y]·L [R = CH3, Y = OH, L = 1·5H2O (1); R = PhCH2, Y = OEt, L = 0 (2)], a pentanuclear tin macrocycle [(CH3)2Sn(C2N2S3)]5·CH2Cl2·3H2O (3) and [(PhCH2)4Cl2Sn(C2S3N2)] (4) have been synthesized by the reaction of 2,5‐dimercapto‐1,3,4‐thiadiazole with dialkyltin dichloride in ethanol (95%) or dichloromethane. Complexes 1−4 have been characterized by elemental analysis and IR, 1H, 13C and 119Sn NMR spectroscopy. The structures of 1−3 have been determined by X‐ray crystallography. Complexes 1 and 2 display a unique tricyclic structure consisting of fused five‐membered Sn2ON2 and four‐membered Sn2O2 rings that form a planar N2Sn3O2 skeleton, with a distorted trigonal bipyramidal coordination at tin. Complex 3 is a pentanuclear 35‐membered tin macrocycle containing the crown thioether‐type ligand in which all five tin atoms bond to the sulfur and nitrogen atoms with distorted octahedral geometries. The structures of complexes 1 and 3 are stabilized by hydrogen bonds or intermolecular non‐bonding S···S interactions. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)
Published Version
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