Nature of Electronic Transitions in Trinuclear Polymethine Dyes
โ Scribed by Yu.L. Bricks; A.A. Ishchenko; A.D. Kachkovski; A.I. Tolmachev
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- English
- Weight
- 928 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0143-7208
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In the present article, polymethine and annulene electronic spectra are described in a unique way by means of the Pariser-Parr-Pople method. The analytical expressions were derived for the first r-electron transitions energies. The character of the annulene spectra, like the character of the open-ch
The laser photolysis technique has been used for the investigation of temperature and solven effects on the triplet decay rate (k-f) of thiacubocyanine dyes containing I and Brat the meso position of the polymethine chain. At low temperatures, when X-T is virtually constant, the radiationless triple