TIN-SULFUR COORDINATION IN A TRIPHENYLTIN(IV) DERIVATIVE OF MONOTHIOBENZOIC ACID - CRYSTAL-STRUCTURE OF TRIPHENYL(MONOTHIOBENZOATO)TIN(IV)

Reaction of triphenyltin(IV) chloride with monothiobenzoic acid result s in the formation of triphenyl (monothiobenzoato) tin (IV), C25H20OSS n, which crystallizes in the orthorhombic system, space group P2(1)2(1 )2(1) (No. 19), with a = 8.2959(8), b = 16.900(4), c = 31.453(2) Angst rom, V = 4410(1) Angstrom(3), D-c = 1.4688 cm(-3), F(000) = 1952, mu = 12.64 cm(-1) for Z = 8. Refinement converged to R = 0.037 and R(w) = 0.041 (w = [sigma(2)(F) + (0.02F)(2) + 1](-1)) based on 3282 unique re flections and 2191 observed reflections such that l>3 sigma(l). The li gand functions as a monodentate anion coordinating to the tin atom thr ough its sulphur atom and conferring a tetrahedral geometry about the tin atom. The average bond length between tin and sulphur is 2.430(5)A ngstrom.