FORMATION OF (ETA-5-PENTAMETHYLCYCLOPENTADIENYL)(1-PHENYLMETHANIMINE-N,1-DITHIOLATO)COBALT(III) HAVING A NOVEL METALLACYCLE, 1,2,5,3-COBALTADITHIAZOLE, IN REACTIONS OF [CO(CP-STAR)(CO)2] WITH HETEROCYCLIC-COMPOUNDS CONTAINING S AND N

(Eta(5)-Pentamethylcyclopentadienyl)(1-phenylmethanimine-N,1-dithiolato)cobalt(III) (1) containing 1,2,5,3-cobaltadithiazole ring (a novel metallacycle) is formed in the reactions of [Co(cp*)(CO)2] with several precursors of benzonitrile sulfide, 5-phenyl-1,3,4-oxathiazol-2-one (thermal precursor), 4-phenyl-1,3,2-oxathiazolylium-5-olate, and 5-phenyl-1,2,3,4-thiatriazole (photochemical precursors). Compound 1 is also formed in the thermal reactions of [Co(cp*)(CO)2] with 3,6-diphenyl-1,4,2,5-dithiadiazine, 3,5-diphenyl-1,4,2,6-dithiadiazine, 2-diethyl-amino-5-phenyl-1,3,4-dithiazolium perchlorate, 5-phenyl-1,2,4-dithiazol-3-one, or 5-phenyl-1,2,4-dithiazole-3-thione.