The first example of a dinuclear organotin complex with a C₂N₂S₂Sn₂planar dicyclo fragment

Abstract

The asymmetric unit of the unexpected title compound, 2,2,6,6‐tetra‐n‐butyl‐2,6‐dichloro‐4,8‐bis{[(1E)‐4‐methoxybenzylidene]hydrazino}‐1,5‐diaza‐2,6‐distanna‐3,7‐dithiabicyclo[3.3.0]octa‐3,7‐diene bis{1,5[(1E)‐4‐methoxybenzylidene]thiocarbonohydrazide} ethanol disolvate, [Sn2(C4H9)4Cl2(C18H18N6O2S2)]·2C17H18N4O2S·2C2H5OH, comprises one half‐molecule of the organotin complex, one thiocarbonohydrazide molecule and one ethanol solvent molecule, and is the first example of a substituted C2N2S2Sn2 planar dicyclo–organotin complex. Each SnIV atom is pentacoordinated with a distorted trigonal–bipyramidal geometry and the complex is disposed across a crystallographic centre of inversion. Weak intermolecular N—H...Cl and C—H...Cl hydrogen bonds and weak S...S interactions link the molecules of the organotin complex into one‐dimensional infinite chains.