作者:Seik Weng Ng、V.G. Kumar Das
DOI:10.1016/0022-328x(91)86139-h
日期:1991.5
carboxylate-bridged structure with trans-C3SnO2 trigonal bipyramidal geometry at tin. The diorganotin dithiocarbamylacetates also adopt a bridged structure with a trans-C2SnO4 octahedral geometry at tin. The triorganotin esters dissociate into four-coordinate species in solution, as revelaed by NMR (1H and 13C) spectral data. The tri-cyclohexyltin esters, however, are four-coordinate monomers in the solid state and
十二二和三有机锡的通式为R的dithiocarbamylacetic酸衍生物Ñ的Sn(O 2 CCH 2 š 2 CNR' 2)4- Ñ(R = Me中,Ñ卜,Ç己烷中,Ph; NR' 2 = NME 2制备NEt 2,N(CH 2)4,N(CH 2 CH 2)2 O;n= 3,2)。根据IR和Mössbauer光谱数据,将三甲基,三正丁基和三苯基锡衍生物分配为具有反式的羧酸桥结构-C 3 SnO 2在锡处的三角双锥几何形状。二有机锡二硫代氨基甲酸酯也采用在锡处具有反式-C 2 SnO 4八面体几何形状的桥联结构。NMR(1 H和13 C)光谱数据表明,三有机锡酸酯在溶液中解离为四配位物质。然而,三环己基锡酯是固态和溶液形式的四配位单体。三个distannoxanes,[(R“ 2的SnO 2 CCH 2小号2 CN-ME 2)O 2 ] 2(R” 2的Sn =卜在尝试由二有机锡二卤化物制