COORDINATION COMPOUNDS OF TIN AND BISMUTH. COMPLEXES OF TIN(IV) AND BISMUTH(III) WITH N,N-DIALKYLDITHIOCARBAMATES

Abstract

Tin and bismuth metals react with N,N,N′,N′-tetraethylthiuramdisulfide, [Et2NC(S)S]2, and N,N,N′,N′-tetramethylthiuramdisulfide, [Mt2NC(S)S]2, in refluxing toluene to give the compounds Sn(S2CNR2)4 (R = Et, Me) in high yield. Under similar conditions bismuth gives Bi(S2CNR2)3. The reaction of metallic tin with a mixture of iodine and [R2NC(S)S]2 gives the compounds SnI(S2CNR2)3 and SnI2(S2CNR2)2. Similarly, with mixtures of [R2NC(S)S]2 and I2, bismuth yields BiI(S2CNR2)2 and BiI2(S2CNR2). Adducts of Bi(S2CNR2)3 with 1,10-phenanthroline and 2,2′-bipyridyl were also prepared. The compounds and adducts were characterized by microanalyses, infrared, UV/Visible spectroscopy and conductivity measurements.