Raman spectroscopic evidence for cooperative C-H...O interactions in the Acetaldehyde-CO2 complex

In carbonyl compounds having a hydrogen atom attached to the alpha-carbon or directly to the carbonyl carbon, our recent ab initio and solvation studies have predicted the presence of a weak C-H...O interaction with CO2. This intermolecular interaction acts cooperatively with the Lewis acid-Lewis ba...

Full description

Saved in:
Bibliographic Details
Published inJournal of the American Chemical Society Vol. 124; no. 50; pp. 14818 - 14819
Main Authors BLATCHFORD, Marc A, RAVEENDRAN, Poovathinthodiyil, WALLEN, Scott L
Format Journal Article
LanguageEnglish
Published Washington, DC American Chemical Society 18.12.2002
Subjects
Atomic and molecular physics
Exact sciences and technology
Molecular properties and interactions with photons
Molecular spectra
Physics
Raman and rayleigh spectra (including optical scattering)
Hydrogen bonds
Molecular structure
Carbon dioxide
Theoretical study
Molecular interaction
Molecular complex
Ab initio calculations
Experimental study
Raman spectroscopy
Acetaldehyde
Online AccessGet full text

Cover

More Information
Summary:In carbonyl compounds having a hydrogen atom attached to the alpha-carbon or directly to the carbonyl carbon, our recent ab initio and solvation studies have predicted the presence of a weak C-H...O interaction with CO2. This intermolecular interaction acts cooperatively with the Lewis acid-Lewis base interaction that exists between CO2 and the carbonyl group. This communication provides the first experimental evidence for this cooperative interaction in the acetaldehyde-CO2 complex using Raman spectroscopy at 25.0 degrees C in the gas phase. The implications of these interactions in the solvation of carbonyl-based CO2-philes are also discussed.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0002-7863
1520-5126