Synthesis and spectroscopic characterization of tin(IV) and organotin(IV) derivatives of bis(azol-1-yl)methanes

A series of 1:1 adducts of the type [(L)R(n)SnX(4-n)]. yH(2)O (L = bis(imidazol-1-yl)methane (L(I)) or bis(1,2,4-triazol-1-il)methane (L(T));R = Me, Et, Bu(n) or Ph; X = I, Br or Cl; n = 0, 1, 2 or 3; y = O, 1, 1.5 or 2) have been synthesized and characterized in the solid state and in solution by analyses, spectral (IR, far-IR, H-1 and Sn-119 NMR) data and conductivity measurements. Some of them are likely polymeric in the solid state. The tri- and di-organotin(IV) compounds generally dissociate in DMSO solution, while the tri- and tetrahalide adducts partially retain the hexacoordinate configuration.