Crystal structure of pentacarbonyl(2,2-difluoropropanethioato-κS)manganese(I)

Abstract

The title compound, [Mn{SC(O)CF2CH3}(CO)5], has been isolated as a by-product during the reaction of K[Mn(CO)5] with CH3CF2COCl. It is built up from a difluoromethylpropanethioate bonded to an Mn(CO)5 moiety through the S atom. The Mn atom has an almost perfect octahedral coordination sphere. It is one of the rare examples of compounds containing the (CO)5MnS—C fragment. In the crystal, the methyl group occupies a pocket surrounded by the O atoms of three carbonyl groups of the Mn(CO)5 moiety; however, the H...O distances are rather long. These interactions lead to the formation of layers lying parallel to (101), which enclose R 4 4(15) and R 4 4(16) ring motifs. The CF2 group is disordered over two sets of sites with occupancies of 0.849 (3) and 0.151 (3).