Document Type

Article

Publication Date

2000

Abstract

High-temperature Knudsen cell mass spectrometry has been used to study the equilibria involving the B2Nmolecule over the Si–BN system. Thermal functions needed in the evaluation of the mass spectrometric equilibrium data have been calculated from available experimental and theoretical molecular parameters. The enthalpy changes for the reactions2B(g)+Si2N(g)=B2N(g)+2Si(g),and BN(s)+B(g)=B2N(g)have been measured. The following atomization enthalpy,ΔaHo0,and enthalpy of formation,ΔfHo298.15,in kJ mol−1, of1045.5±18 and551.3±18 for theB2N molecule have been determined from these reactionenthalpies. Atomization energies of similar molecules have been compared and discussed.

Comments

Copyright 2000 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

The following article appeared in Meloni, G., Baba, M. S., & Gingerich, K. A. (2000). Knudsen cell mass spectrometric investigation of the B[sub 2]N molecule. Journal Of Chemical Physics, 113(20) and may be found at http://dx.doi.org/10.1063/1.1319353.

DOI

10.1063/1.1319353

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