Effusion-mass spectrometric study of the thermodynamic properties of BO? and BO ? 2
- 1 January 1971
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Transactions of the Faraday Society
- Vol. 67, 2941-2944
- https://doi.org/10.1039/tf9716702941
Abstract
Thermodynamic properties were obtained for negative ions of the lower boron oxides by means of the Knudsen cell-mass spectrometer method over the temperature range 1623-2100 K. Second and third law studies were conducted involving negative ions with neutral atoms and molecules for the reactions BO(g)+Cl–(g)= BO–(g)+ Cl(g), BO2(g)+ Cl–(g)= BO– 2(g)+Cl(g). The heats of formation ΔHf298 for the negative ions BO– and BO– 2 were obtained from the reaction thermodynamics as –71.9±2.0 and –159.3±2.0 kcal/mol, respectively. The electron affinities were E.A.(BO)= 71.9±2.0 kcal/mol and E.A.(BO2)= 82.3±3.0 kcal/mol.Keywords
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