Optical absorption spectra of polyenes with one, two and three charged solitons are calculated using the INDO method combined with configuration interaction. The calculations are performed both with and without counterions. The effect of screening of the Coulomb potential is studied and observed to
Theoretical analysis of optical absorption spectra of cyclopentatrienylidene retinals
β Scribed by Yoshitaka Beppu; Toshiaki Kakitani; Masayoshi Ito; Kiyoshi Tsukida; Toru Yoshizawa
- Publisher
- Elsevier Science
- Year
- 1985
- Tongue
- English
- Weight
- 417 KB
- Volume
- 116
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
β¦ Synopsis
Electroatc and molecular strucrures of 11-1~s CycI~pentatnenybdene retmal are mvest;gated by means of the CNDO and PPP molecular orbital cakulauons A theoretical analysts 1s gven for the mechamsm of the large red&A of the optical absorption spectrum rn tfus retinal aualogue from that of fl-cis retrnal
π SIMILAR VOLUMES
We provide theoretical information from quantum path integral molecular dynamics simulations on the size dependence of the mean optical excitation energy of the localized excess electron in (H>O); (n = 8-128) cluster. We consider the energetics and the nature of the electronic excitation, i.e. boun
## Abstract Optical absorption spectra of magnesiumβimplanted GaP single crystals are measured in the photon energy range below the fundamental edge. It is found that implantation results in the formation of exponential absorption tails with tailing energies up to about 0.8 eV and absorption coeffi
## Absorption measurements in the region of 2200 A to 10,000 A were made on optically polished thoria crystals of 99.9 per cent purity. Firing the crystals in air and in vacuum at different temperatures gave the red, white and yellow forms described by Weinreich and Dzmforth.' The present improved