Journal article
Vibrational relaxation of C-D stretching vibrations in CDCl3, CDBr3, and CDI3
The Journal of chemical physics, Vol.125(17), pp.174503-174503
11/07/2006
DOI: 10.1063/1.2361288
PMID: 17100450
Abstract
We present time-resolved transient grating measurements of the vibrational relaxation rates of the C-D stretching vibrations of deuterated haloforms in benzene and acetone. We compare our results with previous measurements of excited C-H stretches in the same solvents to obtain insight into the solvent effect on the vibrational relaxation. In deuterated molecules, there are more low-order-coupled states and the states are closer in energy to the C-D stretch than in the unlabeled isotopologs. Therefore, the relaxation is faster for the deuterated molecules. The relaxation also shows a significant solvent dependence. Bromoform and iodoform form charge-transfer complexes with both benzene and acetone which enhance the relaxation rate. For chloroform, hydrogen bonding to acetone is expected to be a more favorable interaction. Surprisingly, however, the vibrational relaxation of CDCl(3) is slower in acetone than in benzene.
Details
- Title: Subtitle
- Vibrational relaxation of C-D stretching vibrations in CDCl3, CDBr3, and CDI3
- Creators
- Kenan Gündoğdu - Chemistry Department, The University of Iowa, Iowa City, IA 52242, USAMichael W NydeggerJigar N BandariaSarah E HillChristopher M Cheatum
- Resource Type
- Journal article
- Publication Details
- The Journal of chemical physics, Vol.125(17), pp.174503-174503
- DOI
- 10.1063/1.2361288
- PMID
- 17100450
- ISSN
- 0021-9606
- eISSN
- 1089-7690
- Language
- English
- Date published
- 11/07/2006
- Academic Unit
- Liberal Arts and Science Admin; Chemistry
- Record Identifier
- 9984216601302771
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