Polysubstituted derivatives of 3-(η5-Cp)-4-SMe2-3,1,2-FeC2B9H10. X-ray structure of 3-(η5-Cp)-4-SMe2-7,8-(CF3COO)2-12-HgCl-3,1,2-FeC2B9H7

The electrophilic mercuration of 3-(η5-Cp)-4-SMe2-3,1,2-FeC2B9H10 (1) was investigated. The reaction of 1 with the excess of mercury trifluoroacetate in dichloromethane at 20 °C gives complexes containing from two to four substituents depending on the ratio of reagents. All new compounds were separated and characterized by elemental analysis and NMR spectra. The positions of substitution were established by 11B-NMR and 11B-11B COSY NMR spectra. X-ray structure of 3-(η5-Cp)-4-SMe2-7,8-(CF3COO)2-12-HgCl-3,1,2-FeC2B9H7 was determined.