Cyclopentadienyl tungsten complexes with thiocarboxylate and thiosulfonate ligands: Structures of CpW(CO)3SCOPh and CpW(CO)3SSO2-4-C6H4Cl

Treatment of the hydrosulfido tungsten complex CpW(CO)3SH with acid chlorides (RCOCl) or sulfonyl chlorides (RSO2Cl) affords CpW(CO)3SCOR (1) [R = Me (a), CH2Cl (b), Ph (c), 4-C6H4NO2 (d)] and CpW(CO)3SSO2R (2) [R = Me (a), Ph (b), 4-C6H4Cl (c), 4-C6H4NO2 (d)], respectively. The novel complexes, 1 and 2, were fully characterized by elemental analyses, IR and 1H NMR spectroscopy. The solid state structures of CpW(CO)3SCOPh (1c) and CpW(CO)3SSO2-4-C6H4Cl (2c) were determined by an X-ray crystal structure analysis.

Treatment of CpW(CO)3SH with RCOCl or RSO2Cl affords CpW(CO)3SCOR (1) [R = Me (a), CH2Cl (b), Ph (c), 4-C6H4NO2 (d)] and CpW(CO)3SSO2R (2) [R = Me (a), Ph (b), 4-C6H4Cl (c), 4-C6H4NO2 (d)], respectively. Compounds 1 and 2 were characterized by elemental analyses, IR and 1H NMR spectroscopy. The solid state structures of 1c and 2c were determined by an X-ray crystal structure analysis.Figure optionsDownload as PowerPoint slide