Thermodynamic functions of germanium oxide molecules in the gaseous phase: $\rm GeO_2$(g), $\rm Ge_2O_2$(g), and $\rm Ge_3O_3$(g)

Critical analysis of experimental and theoretical data on the structure and vibrational frequencies of $\rm GeO_2$, $\rm Ge_2O_2$, and $\rm Ge_3O_3$ molecules is performed. The values of molecular constants are chosen, and thermodynamic functions in the rigid rotator–harmonic oscillator approximation are calculated in temperate interval $T = 298.15$–$3000$ K. The values obtained are introduced into the data base of the IVTANTERMO program complex.