Hydrogen Bonding Studies IV. Acidity and Basicity of Triphenylhydroxy Compounds of Group IV B Elements and the Questions of Pi-Bonding from Oxygen to Metals

摘要

The acidity and basicity as hydrogen bond donors and acceptors has been measured for the compounds Ph3MOH, where M = C, Si, Ge, Sn and Pb. The trends in acidity and basicity in these compounds indicate that dative pi-bonding from oxygen to M is strong in Ph3SiOH, weaker in Ph3GeOH, and negligible in the other three compounds. A linear relation¬ship has been found between. OH and the electronegativity of M, for these and related hydroxyl compounds.