论文信息 - Strength of the N–F Bonds in NF3 and of N–F and N–N Bonds in N2F4

Strength of the N–F Bonds in NF3 and of N–F and N–N Bonds in N2F4

The heat of formation of the difluoroamino free radical is found to be 8.9±2.5 kcal/mole. The NF2–F bond in NF3 is the weakest bond in NF3 in contrast to ammonia where the NH2–H bond is the strongest bond. The strength of the NF2–F bond is 57.1±2.5 kcal/mole while the average NF bond strength in NF2 and N2F4 is 71 kcal/mole. The strength of the N–N bond in tetrafluorohydrazine, as determined from appearance potential data, is 20.7 kcal in excellent agreement with the value 19.8 kcal found by thermal measurements.

C. B. Colburn | Al Kennedy

[1] F. A. Johnson,et al. An EPR Study of the Tetrafluorohydrazine‐Difluoramino Equilibrium , 1961 .

[2] F. A. Johnson,et al. The Tetrafluorohydrazine-Difluoroamino Radical Equilibrium1 , 1961 .

[3] F. A. Johnson,et al. Strength of the N–N Bond in Tetrafluorohydrazine , 1960 .

[4] J. Herron,et al. Mass Spectrum and Appearance Potentials of Tetrafluorohydrazine , 1960 .

[5] C. Mader,et al. Appearance Potential Study of Tetrafluorohydrazine , 1960 .

[6] S. Marantz,et al. HEAT OF FORMATION OF NITROGEN TRIFLUORIDE AND THE N-F BOND ENERGY , 1959 .

[7] V. H. Dibeler,et al. IONIZATION AND DISSOCIATION OF NITROGEN TRIFLUORIDE BY ELECTRON IMPACT , 1956 .

[8] A. P. Altshuller. Heat of Formation of NH(g) and the Bond Dissociation Energy D(NH–H) , 1954 .

[9] H. Neuert,et al. Massenspektrometrische Untersuchung von SH2, SeH2, PH3, SiH4 und GeH4 , 1952 .

[10] J. Tate,et al. The Ionization and Dissociation of Water Vapor and Ammonia by Electron Impact , 1940 .

[11] J. Tate,et al. Dissociation Processes Produced in SbCl 3 , AsCl 3 and PCl 3 by Electron Impact , 1937 .