Synthesis and crystallographic characterization of thiazole-2-dithiocarboxylate methyl ester complexes of chromium, tungsten and iron carbonyls†
Abstract
Co-ordination of 4-methylthiazole-2-dithiocarboxylate methyl ester, I, or benzothiazole-2-dithiocarboxylate methyl ester, II, to [Cr(CO)5(THF)], [W(CO)5(THF)] or [Fe(CO)4(THF)] afforded the new complexes [M(CO)4{SC(SCH3)CNC(CH3)CHS}] (M = Cr 1 or W 2), [Cr(CO)4{SC(SCH3)CNC6H4S-o}] 3, [Fe(CO)3{SC(SCH3)CNC(CH3)CHS}] 4 and [Fe(CO)3{SC(SCH3)CNC6H4S-o}] 5. Single crystal X-ray structure determinations of 1 and 5 revealed co-ordination of the bidentate