Hypercoordinated organotin compounds containing sulfur and chlorine. Molecular structures of [(Ph3P)2N]+[S(SnR2Cl)2Cl]− (R=Me, t-Bu)
作者:Jens Beckmann、Dainis Dakternieks、Andrew Duthie、Carissa Jones、Klaus Jurkschat、Edward R.T Tiekink
DOI:10.1016/s0022-328x(01)01069-5
日期:2001.11
The reaction of diorganotin sulfides, cyclo-(R2SnS)(n) (R = Me, n-Bu; n = 3; R = t-Bu; n = 2) with the corresponding diorganotin dichlorides, R2SnCl2, provided the tetraorganodistannathianes, (R2ClSn)(2)S (1, R = Me; 2, R =n-Bu; 3, R = t-Bu). H-1-, C-13-, and Sn-119-NMR studies indicate that these compounds are kinetically labile and in equilibrium with the starting materials, Addition of equimolar amounts of [(Ph3P)(2)N]Cl to the reaction mixtures gave the chloride complexes [(Ph3P)(2)N](+)[S(SnR2Cl)(2)Cl](-) (4, R = Me; 5, R = n-Bu; 6, R = t-Bu). Single-crystal X-ray diffraction studies revealed the tin atoms in both 4 and 6 to adopt distorted trigonal bipyramidal configurations with the chlorine atoms occupying the axial positions. (C) 2001 Elsevier Science B.V. All rights reserved.