GeO2上のGeO2(g)分圧の質量分析的測定とGe303(g)の分子構造に関する一考察

The vapor species of GeO, GeO2, Ge2O2, and Ge3O3 over germanium dioxide were observed by means of the Knudsen effusion mass spectrometric method. Among them the dioxide vapor, GeO2(g), was first detected and its partial pressure over the temperature range of 1180 to 1370°C was measured and expressed by the equation;log {p(GeO2, g)/atm} = 6.05 - (1.88 × 104/T)The 3-membered Ge-ring structure of Ge3O3 (g) was proposed to be more possible than the alternate 6-membered structure judging from the fact that the fragment ions of Ge3+ and Ge3O+ were detected and that the approximate molecular orbital calculation revealed the intrinsic stability of Ge3+ ion.