Article

Arhive, 2012, № 2

Thermophysical Properties of Materials

2012. V. 50. № 2. P. 186–193

Nikitin M.I., Zbezhneva S.G.

Formation enthalpies of ruthenium fluorides: Ruthenium-fluoridizer agent systems

Published in the literature data on $\mathrm{Ru}$–$\mathrm{TbF_4}$ (a scheme of changes of its components in the condensed phase is proposed here) and $\mathrm{Ru}$–$\mathrm{IF_5}$–$\mathrm{Ag}$ gas phase systems have been critically reviewed. The formation enthalpies ($298$ K, kJ/mol) of gaseous $\mathrm{Ru_3F_{15}}$ — $2600.5\pm1.7$, $\mathrm{Ru_2F_{10}}$ — $1686.2\pm1.8$, $\mathrm{RuF_5}$ —$740.5\pm9.8$, $\mathrm{RuF_6}$ — $848.3\pm10$, $\mathrm{RuF_4}$ — $646\pm10$, $\mathrm{RuF_3}$ — $390.3$, $\mathrm{RuF_2}$ — $130.3\pm10.3$, $\mathrm{RuF}$ $271.2$ and crystalline $\mathrm{RuF_4}$ — $854.3\pm1.1$, $\mathrm{RuF_3(\text{c})}$ —$672.8$ и $\mathrm{Pt_3F_{15}(\text{c})}$ — $2142.6\pm12$ are calculated. The applicability of the proposed set of thermodynamic characteristics to describe the thermal and chemical behavior of ruthenium fluorides has been shown.

Article reference:
Nikitin M.I., Zbezhneva S.G. Formation enthalpies of ruthenium fluorides: Ruthenium-fluoridizer agent systems, High Temp., 2012. V. 50. № 2. P. 186