[Os(η 5 -B 5 H 10 ) 2 ]: A carbon-free analog of ferrocene
Stutee Mohapatra·Sundargopal Ghosh·Gaurav Joshi·Deepak Kumar Patel·Eluvathingal D. Jemmis·Urvashi Gupta·Suvam Saha
The synthesis of a carbon-free analog of ferrocene has been a long-standing goal in inorganic chemistry. We report here the preparation and crystallographic characterization of the carbon-free sandwich complex [Os(η<sup>5</sup>-B<sub>5</sub>H<sub>10</sub>)<sub>2</sub>], which is qualitatively similar to ferrocene in structure and bonding. The metal-ring bonding is much stronger in [Os(η<sup>5</sup>-B<sub>5</sub>H<sub>10</sub>)<sub>2</sub>], owing to rehybridization of the π molecular orbitals br