Abstract
Molecular boric acid has been characterised by mass spectrometry and matrix isolation-infrared spectroscopy. These studies have shown that monomeric H{sub 3}BO{sub 3} is a major component in the vaporisation of orthoboric acid. The infrared spectrum of matrix-isolated H{sub 3}BO{sub 3} shows some features in common with that of the solid, but significant frequency shifts occur for modes dominated by hydrogen motion. Isotope enrichment experiments have confirmed that H{sub 3}BO has C{sub 3h} symmetry, and the resulting infrared data have been used to calculate thermodynamic functions for the H{sub 3}BO{sub 3} molecule. These calculated data differ significantly from those tabulated in JANAF, where it is assumed that the torsion modes can be treated as internal rotations. Use of the new data gives equilibrium constants for the reaction CsI(g) + H{sub 3} BO{sub 3}(g) CsB0{sub 2}(c) + HI (g) + H{sub 2}O(g) which are an order of magnitude greater than previously assumed. (author).
Dickinson, S.;
[1]
Ogden, J. S.;
Young, N. A.
[2]
- UKAEA Atomic Energy Establishment, Winfrith (United Kingdom). Chemistry Div.
- Southampton Univ. (United Kingdom)
Citation Formats
Dickinson, S., Ogden, J. S., and Young, N. A.
Vibrational fundamentals and thermodynamic functions of molecular boric acid: a re-evaluation of the CsI + H{sub 3}BO{sub 3} reaction.
United Kingdom: N. p.,
1988.
Web.
Dickinson, S., Ogden, J. S., & Young, N. A.
Vibrational fundamentals and thermodynamic functions of molecular boric acid: a re-evaluation of the CsI + H{sub 3}BO{sub 3} reaction.
United Kingdom.
Dickinson, S., Ogden, J. S., and Young, N. A.
1988.
"Vibrational fundamentals and thermodynamic functions of molecular boric acid: a re-evaluation of the CsI + H{sub 3}BO{sub 3} reaction."
United Kingdom.
@misc{etde_10129520,
title = {Vibrational fundamentals and thermodynamic functions of molecular boric acid: a re-evaluation of the CsI + H{sub 3}BO{sub 3} reaction}
author = {Dickinson, S., Ogden, J. S., and Young, N. A.}
abstractNote = {Molecular boric acid has been characterised by mass spectrometry and matrix isolation-infrared spectroscopy. These studies have shown that monomeric H{sub 3}BO{sub 3} is a major component in the vaporisation of orthoboric acid. The infrared spectrum of matrix-isolated H{sub 3}BO{sub 3} shows some features in common with that of the solid, but significant frequency shifts occur for modes dominated by hydrogen motion. Isotope enrichment experiments have confirmed that H{sub 3}BO has C{sub 3h} symmetry, and the resulting infrared data have been used to calculate thermodynamic functions for the H{sub 3}BO{sub 3} molecule. These calculated data differ significantly from those tabulated in JANAF, where it is assumed that the torsion modes can be treated as internal rotations. Use of the new data gives equilibrium constants for the reaction CsI(g) + H{sub 3} BO{sub 3}(g) CsB0{sub 2}(c) + HI (g) + H{sub 2}O(g) which are an order of magnitude greater than previously assumed. (author).}
place = {United Kingdom}
year = {1988}
month = {Jun}
}
title = {Vibrational fundamentals and thermodynamic functions of molecular boric acid: a re-evaluation of the CsI + H{sub 3}BO{sub 3} reaction}
author = {Dickinson, S., Ogden, J. S., and Young, N. A.}
abstractNote = {Molecular boric acid has been characterised by mass spectrometry and matrix isolation-infrared spectroscopy. These studies have shown that monomeric H{sub 3}BO{sub 3} is a major component in the vaporisation of orthoboric acid. The infrared spectrum of matrix-isolated H{sub 3}BO{sub 3} shows some features in common with that of the solid, but significant frequency shifts occur for modes dominated by hydrogen motion. Isotope enrichment experiments have confirmed that H{sub 3}BO has C{sub 3h} symmetry, and the resulting infrared data have been used to calculate thermodynamic functions for the H{sub 3}BO{sub 3} molecule. These calculated data differ significantly from those tabulated in JANAF, where it is assumed that the torsion modes can be treated as internal rotations. Use of the new data gives equilibrium constants for the reaction CsI(g) + H{sub 3} BO{sub 3}(g) CsB0{sub 2}(c) + HI (g) + H{sub 2}O(g) which are an order of magnitude greater than previously assumed. (author).}
place = {United Kingdom}
year = {1988}
month = {Jun}
}