The low frequency normal modes of trans, trans-1,3,5,7-octatetraene
β Scribed by Bruce S. Hudson; John R. Andrews
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- English
- Weight
- 316 KB
- Volume
- 63
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
β¦ Synopsis
The low frequency nor.mal mode eigenvectors of trans.trans-l.3.5,7-oct~tetr3ene uere caicuisted using the CTF-T procedure of Warshel and Karp!us. The vibronically actix mode observed at 109 cm-' is identified IS an in-plane bend of the entire chain with bo symmetry.
π SIMILAR VOLUMES
Electronic excitation by low energy electron impact has been \ludied for 1,3,5-trarfs-hexatriene. At = 4.2 cV. 3 weak absorption is observed. On the basis of the results of semi-empirical calculations this absorption can be assigned to the second triplet state.
The excitation spectra of 1.3.5-cycloheptatriene and 1,3,5.7 cycle-octatetraene have been measured with low energy electron impact spectroscopy. The results are discussed on the basis of quantumchemical calculations. The interaction of low energy electrons and single molecules is an important sour