Temperature effect upon the UV absorption spectra of aniline derivatives
โ Scribed by C. Dubroca
- Publisher
- Elsevier Science
- Year
- 1972
- Tongue
- English
- Weight
- 314 KB
- Volume
- 15
- Category
- Article
- ISSN
- 0009-2614
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โฆ Synopsis
Cooling of aromatic amines in nonpolar media shows 3 disappearance of the absorption CT band. This diwppeuante suggests the existence of a different conformation of these molecules in the stiffening range.
๐ SIMILAR VOLUMES
The effects of variation of temperature in the range o"-40ยฐC on the zero and second derivative ultraviolet absorption spectra of ten compounds have been investigated. When the temperature of the solutions was increased, most of the substances showed a linear reduction of maximum absorbance (A,,;,,),
A computational approach has been carried out on liquid crystalline disubstituted biphenylcyclohexanes (BCHs) of general formula R-C 6 H 10 -C 6 H 4 -C 6 H 4 -X with R: C 3 H 7 ; X: H (BCH30) and R: C 5 H 11 ; X: CN (BCH5CN) using the CNDO/S + CI and INDO/S + CI methods. These methods have been empl