Tungsten carbonyl σ-complexes of nido-carborane thioethers

Nido-carborane thioethers Cs[X-(CH2)nSMe-7,8-C2B9H11)] (X = 7, 9, n = 0; X = 9, n = 1) were synthesized and their reactions with tungsten carbonyl W(CO)5(THF) were investigated. The corresponding pentacarbonyl tungsten complexes were isolated as cesium salts and characterized. Structure of cesium 7-methylthio-7,8-dicarba-nido-undecaborate was established by single crystal X-ray diffraction.

Nido-carborane thioethers Cs[X-(CH2)nSMe-7,8-C2B9H11)] (X = 7, 9, n = 0; X = 9, n = 1) were synthesized and their reactions with tungsten carbonyl W(CO)5(THF) were investigated. The corresponding pentacarbonyl tungsten complexes were isolated as cesium salts and characterized. Structure of cesium 7-methylthio-7,8-dicarba-nido-undecaborate was established by single crystal X-ray diffraction.Figure optionsDownload as PowerPoint slideHighlights
► C- and B-substituted nido-carborane thioethers were synthesized.
► Complexation of nido-carborane thioethers with W(CO)5(THF) were investigated.
► The corresponding complexes were isolated as cesium salts and characterized.
► Structure of cesium Cs[7-SMe-7,8-C2B9H11)] was established by X-ray analysis.