Abstract
The <i>v</i>(C=O)<sub>2</sub> modes for carboxylic acid anhydrides decrease in frequency as the solvent solubility parameter value increases. The <i>v</i><sub>out-of-phase</sub> (C=O)<sub>2</sub> mode for anhydrides decreases more in frequency than the <i>v</i><sub>in-phase</sub> (C=O)<sub>2</sub> mode in going from CCI<sub>4</sub> solution to CHCI<sub>3</sub> solution, indicating that it is more difficult for the <i>v</i><sub>in-phase</sub> (C=O)<sub>2</sub> mode to vibrate than it is for the <i>v</i><sub>out-of-phase</sub> (C=O)<sub>2</sub> mode in the same solvent system. Solute/solvent interaction induces a change in the Fermi resonance interaction between <i>v</i>(C=O)<sub>2</sub> and combination and/or overtones of lower-lying fundamentals as the mole % solvent 1/solvent 2 changes.
PDF Article
More Like This
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription
Add to BibSonomy