The gaseous Mn2F6 molecule has been identified for the first time in the vapor produced by MnF3 vaporization and the MnF3(g) dimerization equilibrium studied by the Knudsen cell mass spectrometry technique in the 884–1015 K temperature range. The experimental vapor pressure data were treated by the second- and third-law procedures, and the enthalpy of Mn2F6(g) dissociation has been determined as: equation image. Thermodynamic functions of gaseous MnF3 were calculated from geometrical and vibrational parameters taken from the literature. For gaseous Mn2F6, they were evaluated by comparison with molecular parameters of Co2F6(g). Copyright © 2002 John Wiley & Sons, Ltd.
Mass Spectrometric Determination of the Dissociation Energy of Mn2F6 / Ciccioli, Andrea; Jv, Rau; Balducci, Giovanni; S., Brutti; Nn, Chilingarov; Gigli, Guido; S., NUNZIANTE CESARO AND LN SIDOROV. - In: RAPID COMMUNICATIONS IN MASS SPECTROMETRY. - ISSN 0951-4198. - 16:(2002), pp. 1526-1530. [10.1002/rcm.754]
Mass Spectrometric Determination of the Dissociation Energy of Mn2F6
CICCIOLI, Andrea;BALDUCCI, Giovanni;S. BRUTTI;GIGLI, Guido;
2002
Abstract
The gaseous Mn2F6 molecule has been identified for the first time in the vapor produced by MnF3 vaporization and the MnF3(g) dimerization equilibrium studied by the Knudsen cell mass spectrometry technique in the 884–1015 K temperature range. The experimental vapor pressure data were treated by the second- and third-law procedures, and the enthalpy of Mn2F6(g) dissociation has been determined as: equation image. Thermodynamic functions of gaseous MnF3 were calculated from geometrical and vibrational parameters taken from the literature. For gaseous Mn2F6, they were evaluated by comparison with molecular parameters of Co2F6(g). Copyright © 2002 John Wiley & Sons, Ltd.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
