Formation and thermodynamics of gaseous germanium and tin vanadates: a mass spectrometric and quantum chemical study

Abstract

The stabilities of gaseous germanium and tin vanadates were confirmed by high temperature mass spectrometry, and its structures were determined by quantum chemical calculations. A number of gas-phase reactions involving these gaseous salts were studied. On the basis of the equilibrium constants, the standard formation enthalpies of gaseous GeV₂O₆ (−1520 ± 42 kJ mol⁻¹) and SnV₂O₆ (−1520 ± 43 kJ mol⁻¹) were determined at a temperature of 298 K.