Free Radical Reactivity of Mono- and Dichlorosilylene with Muonium (pages 11970–11973)
Prof. Paul W. Percival, Dr. Jean-Claude Brodovitch, Mina Mozafari, Dr. Amitabha Mitra, Prof. Robert West, Dr. Rajendra S. Ghadwal, Dr. Ramachandran Azhakar and Prof. Dr. Herbert W. Roesky
Article first published online: 9 SEP 2011 | DOI: 10.1002/chem.201102405
The H atom analogue muonium (Mu) has been used to explore the free radical reactivity of two novel chlorosilylenes. Spectroscopic and computational investigations show that Mu adds to the silicon in the NHC-stabilised dichlorosilylene. In contrast, Mu reacts at the carbon of a siladiazirene ring in the monochlorosilylene. Muon and Cl hyperfine constants are consistent with flipping of the SiCl bond from one side of the ring to the other.