Coordination chemistry of benzothiazole derivatives. 2-mercaptobenzothiazole and 2-(o-hydroxyphenyl)benzothiazole complexes with Cu(II), Ni(II) and Co(II)

Abstract

Abstract The reaction of 2-mercaptobenzothiazole (MBTH) with Cu(II) ions resulted in a yellow diamagnetic Cu(II) complex, while the reaction with Co(II) produced a dimeric tetrahedral complex. The reaction of Ni(II) with MBTH gave a diamagnetic square planar complex. The yellow copper complex formed a blue five coordinate dimeric complex with pyridine. The isolated blue crystals were investigated by electron spin resonances. The reaction of the diamagnetic nickel complex with different bases yielded distorted octahedral dibase adducts. 2-( o -hydroxyphenyl)benzothiazole gave a brown pseudo tetrahedral complex with Cu(II) and a distorted tetrahedral complex wiht Ni(II). The reaction with Co(II) produced a high spin five coordinate polymeric type compound. The solid spectra of the complexes as well as their base adducts were investigated.