Second-order polarizability of p-substituted cinnamic acids
✍ Scribed by Paresh Chandra Ray
- Book ID
- 103032067
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 295 KB
- Volume
- 248
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
First-order hyperpolarizabilities (/3) of a series of p-substituted cinnamic acids have been measured using the hyper-Rayleigh scattering technique and compared with those of p-substituted benzoic acids./3 in these acids increases as a function of the donor strength. It increases twice with the increase in the effective chain length. Semi-empirical calculations also support this enhancement. Solvents effects are dealt with at the ab initio level within the self-consistent reaction field approach.
📜 SIMILAR VOLUMES
A joint theoretical and experimental study is reported on the structure ± polarizability relationship in a novel type of push ± pull conjugated system which contains a spacer within the conjugated backbone. The chromophores are based on a dithienyl conjugation pathway, spaced by a keto group, and se