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Vibrational Line Profiles as a Probe of Molecular Interactions

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Michael S. Bradley and Cheryl Bratu

Department of Chemistry, Valparaiso University, Valparaiso, IN 46383

J. Chem. Educ., 1997, 74 (5), p 553

DOI: 10.1021/ed074p553

Publication Date (Web): May 1, 1997

Section:

History, Education, and Documentation

Abstract

A Raman experiment which yields basic insights into molecular interactions via vibrational line shape analysis is presented. Specifically, line shifts and changes in profile of the acetone C-C and C=O vibrations during dilution with methanol and CCl₄ are examined. The spectra during methanol dilution reveal an increase in attractive interactions, while those resulting from dilution with CCl₄ reveal increasing repulsive interactions.

Keywords (Audience):

Upper-Division Undergraduate

Keywords (Domain):

Physical Chemistry

Keywords (Pedagogy):

Hands-On Learning / Manipulatives

Keywords (Subject):

Spectroscopy

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This article has been cited by 1 ACS Journal articles (1 most recent appear below).

Chemical and Spectroscopic Studies Related to the Lewis Acidity of Lithium Perchlorate in Diethyl Ether
Gerald Springer, Chanda Elam, Anna Edwards, Craig Bowe, David Boyles, John Bartmess, Martin Chandler, Kevin West, Jan Williams, James Green, Richard M. Pagni, and George W. Kabalka
The Journal of Organic Chemistry1999 64 (7), 2202-2210
- Chemical and Spectroscopic Studies Related to the Lewis Acidity of Lithium Perchlorate in Diethyl Ether
  Gerald Springer, Chanda Elam, Anna Edwards, Craig Bowe, David Boyles, John Bartmess, Martin Chandler, Kevin West, Jan Williams, James Green, Richard M. Pagni, and George W. Kabalka
  The Journal of Organic Chemistry1999 64 (7), 2202-2210
  Polarimetric studies on camphor (2) as well as IR studies on crotonaldehyde (CA; 1) and benzonitrile (BN; 3) confirm the conclusion of a previously published NMR study on crotonaldehyde that lithium perchlorate (LP) weakly binds to probe bases in diethyl ...
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