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Chemistry of organosilicon compounds

1978; Elsevier BV; Volume: 154; Issue: 3 Linguagem: Inglês

10.1016/s0022-328x(00)90875-1

1872-8561

Hideki Sakurai, Kunio Mochida,

Synthesis and characterization of novel inorganic/organometallic compounds

Abstract ESR spectra of five metal-substituted methyl radicals of the type HR 1 R 2 M-CR 3 R 4 are recorded and analyzed. The magnitudes of a(β-SiH) were in a range of 14-15G, while a(β-GeH) of ·CH 2 GeMe 2 H was 10.20G. These coupling constants were markedly temperature dependent, suggesting that the most stable conformation of these radicals at low temperature is one in which the β-MH bond eclipses the p orbital on the metal radical site.