Abstract
Many important chemical processes occur in room temperature liquids on fast time scales under thermal equilibrium conditions. Two such processes are the formation and dissociation of organic solute-solvent complexes and the rotational isomerization around a carbon-carbon single bond. These processes can now be studied using ultrafast 2D infrared vibrational echo chemical exchange experiments. Eight solute-solvent systems composed of phenol and derivatives (solutes) in mixed solvents of benzene and derivatives with CCl4 are studied. Complex formation and dissociation on the picosecond time scale is directly related to the complex formation enthalpies. Insights are gained from simulations. The first direct measurement is made of low barrier height gauche-trans isomerization around a carbon-carbon single bond of a substituted ethane in a room temperature liquid. The results are compared to theoretical calculations from the literature on a similar isomerization and used to estimate the isomerization time ethane would have in room temperature liquid solution.
| Original language | English |
|---|---|
| Title of host publication | 233rd ACS National Meeting, Abstracts of Scientific Papers |
| Publication status | Published - 2007 Dec 28 |
| Externally published | Yes |
| Event | 233rd ACS National Meeting - Chicago, IL, United States Duration: 2007 Mar 25 → 2007 Mar 29 |
Publication series
| Name | ACS National Meeting Book of Abstracts |
|---|---|
| ISSN (Print) | 0065-7727 |
Conference
| Conference | 233rd ACS National Meeting |
|---|---|
| Country | United States |
| City | Chicago, IL |
| Period | 07/3/25 → 07/3/29 |
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ASJC Scopus subject areas
- Chemistry(all)
Cite this
Award Address (E. Bright Wilson Award in Spectroscopy, sponsored by the American Chemical Society). Ultrafast 2-D infrared vibrational echo chemical exchange spectroscopy studies of chemical processes. / Fayer, Michael D.; Zheng, Junrong; Kwak, Kyungwon.
233rd ACS National Meeting, Abstracts of Scientific Papers. 2007. (ACS National Meeting Book of Abstracts).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Award Address (E. Bright Wilson Award in Spectroscopy, sponsored by the American Chemical Society). Ultrafast 2-D infrared vibrational echo chemical exchange spectroscopy studies of chemical processes
AU - Fayer, Michael D.
AU - Zheng, Junrong
AU - Kwak, Kyungwon
PY - 2007/12/28
Y1 - 2007/12/28
N2 - Many important chemical processes occur in room temperature liquids on fast time scales under thermal equilibrium conditions. Two such processes are the formation and dissociation of organic solute-solvent complexes and the rotational isomerization around a carbon-carbon single bond. These processes can now be studied using ultrafast 2D infrared vibrational echo chemical exchange experiments. Eight solute-solvent systems composed of phenol and derivatives (solutes) in mixed solvents of benzene and derivatives with CCl4 are studied. Complex formation and dissociation on the picosecond time scale is directly related to the complex formation enthalpies. Insights are gained from simulations. The first direct measurement is made of low barrier height gauche-trans isomerization around a carbon-carbon single bond of a substituted ethane in a room temperature liquid. The results are compared to theoretical calculations from the literature on a similar isomerization and used to estimate the isomerization time ethane would have in room temperature liquid solution.
AB - Many important chemical processes occur in room temperature liquids on fast time scales under thermal equilibrium conditions. Two such processes are the formation and dissociation of organic solute-solvent complexes and the rotational isomerization around a carbon-carbon single bond. These processes can now be studied using ultrafast 2D infrared vibrational echo chemical exchange experiments. Eight solute-solvent systems composed of phenol and derivatives (solutes) in mixed solvents of benzene and derivatives with CCl4 are studied. Complex formation and dissociation on the picosecond time scale is directly related to the complex formation enthalpies. Insights are gained from simulations. The first direct measurement is made of low barrier height gauche-trans isomerization around a carbon-carbon single bond of a substituted ethane in a room temperature liquid. The results are compared to theoretical calculations from the literature on a similar isomerization and used to estimate the isomerization time ethane would have in room temperature liquid solution.
UR - http://www.scopus.com/inward/record.url?scp=37349048560&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=37349048560&partnerID=8YFLogxK
M3 - Conference contribution
SN - 084127438X
SN - 9780841274389
T3 - ACS National Meeting Book of Abstracts
BT - 233rd ACS National Meeting, Abstracts of Scientific Papers
ER -