Syntheses of diethyldithiocarbamate chelates of chromium(III) and molybdenum(V) by oxidative decarbonylation

Abstract

Chromium hexacarbonyl reacts with [Hg(S₂CNEt₂)₂] under nitrogen in refluxing toluene to give [Cr(S₂CNEt₂)₂] with deposition of mercury. This easily oxidised compound was not isolated but work up of the reaction products in air gave [Cr(S₂CNEt₂)₃]. Reaction of [Mo(CO)₆] with [Hg(S₂CNEt₂)₂] under the same conditions goes through a series of reactions leading to the isolation of Mo^VO(S₂CNEt₂)₃.