The dependence of the frequency of vibration of the Ge-C bond in the spectra of alkylgermanes on the nature of the substituents

Abstract

1. The “barrier” character of the germanium atom in the vibration spectra of organogermanium molecules was established. The characteristic frequencies for the groups Cr3, C2H5, and n-C3H7 joined to Ge were found. 2. A dependence between the frequency of the fully symmetric valence vibrations of the Ge-C bond and the effective electronegativity of the substituents on the germanium atom was established. A formula is given which expresses this dependence. 3. It was found that (C2H5)4Ge analogously to (C2H5)4Si, can react with aluminum chloride at 160–180°.