Abstract
(Ph3P)2Pd(N3)2 reacts with CS2 by 1,3-dipolar cycloaddition to give the thiatriazoline- 5-thionato complex (Ph3P)2Pd(N3CS2)2. From the reaction of [Ph4As]2[Co(N3)4] with CS2, the isotliiocyanato complex [Ph4As]2[Co(NCS)4] has been isolated, and the intermediate thiatriazoline-5-thionato complex [Ph4As]2[Co(N3CS2)4] could be detected by its electronic spectrum.