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The effect of pressure on charge-enhanced C–H⋯O interactions in aqueous triethylamine hydrochloride probed by high pressure Raman spectroscopy
- Source :
-
Chemical Physics Letters . Dec2006, Vol. 432 Issue 1-3, p100-105. 6p. - Publication Year :
- 2006
-
Abstract
- Abstract: The weak hydrogen bonding structures of protonated triethylamine in aqueous solution were investigated by Raman spectroscopy as a function of hydrostatic pressure. The formation of a weak hydrogen bond was directly evidenced by a low-frequency shift of the hydrogen-bonded C–H stretches in the protonated triethylamine moiety. For pure triethylamine, an increase in pressure leads to a blue frequency shift of the C–H bands. Nevertheless, the high pressure study of the C–H bands for a dilute protonated triethylamine/D2O solution yielded an unusual nonmonotonic pressure dependence. This result indicates charge-enhanced C–H⋯O hydrogen-bond formation at high pressure. [Copyright &y& Elsevier]
- Subjects :
- *PRESSURE
*SPECTRUM analysis
*HIGH pressure (Science)
*HIGH pressure (Technology)
Subjects
Details
- Language :
- English
- ISSN :
- 00092614
- Volume :
- 432
- Issue :
- 1-3
- Database :
- Academic Search Index
- Journal :
- Chemical Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 23220672
- Full Text :
- https://doi.org/10.1016/j.cplett.2006.10.042