Knudsen cell mass spectrometry has been used for measuring the saturated vapor pressure of cobalt trifluoride. Enthalpy of sublimation of cobalt trifluoride, Æ8H0(CoF3,0 K), has been determined as 213.7 ± 11.0 kJ/mol. Enthalpies of formation of the gaseous molecules CoF3, CoF4, and of the anion CoF4-, ÆfH0(0 K), have been recalculated as -572.3 ± 32.0, -649.0 ± 32.3 and -1265.3 ± 40.6 kJ/mol, respectively. The electron affinity of cobalt tetrafluoride, EA(COF4), was found to be 6.4 ± 0.3 eV.

Mass Spectrometric Determination of Cobalt Trifluoride Saturated Vapour Pressure. Enthalpy of Formation of Gaseous CoF4 and CoF4-.

J V Rau;
1997

Abstract

Knudsen cell mass spectrometry has been used for measuring the saturated vapor pressure of cobalt trifluoride. Enthalpy of sublimation of cobalt trifluoride, Æ8H0(CoF3,0 K), has been determined as 213.7 ± 11.0 kJ/mol. Enthalpies of formation of the gaseous molecules CoF3, CoF4, and of the anion CoF4-, ÆfH0(0 K), have been recalculated as -572.3 ± 32.0, -649.0 ± 32.3 and -1265.3 ± 40.6 kJ/mol, respectively. The electron affinity of cobalt tetrafluoride, EA(COF4), was found to be 6.4 ± 0.3 eV.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.14243/235084
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