The sin$ct-triplet absorption spectra of truns-azo-methane, truns-azo-ethane, trawls-azo-n-propane, and trans-azo-isopropane have been measured using the technique of oxygen perturbation. It was found that the triplet level lies 55.5 + 1.5 kcal mole-' above the ground state in these compounds. These
Singlet-singlet and triplet-triplet absorption of hematoporphyrin diacetate
✍ Scribed by R. Gadonas; R. Kapočiūt≐; V. Krasauskas; A. Piskarskas; R. Rotomskis
- Publisher
- Elsevier Science
- Year
- 1986
- Tongue
- English
- Weight
- 276 KB
- Volume
- 129
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
The excited singlet and triplet absorption spectra of hematoporphyrin diacetate are presented. Extinction coefficients in the spectral range 420-700 nm are estimated. Two possible mechanisms of step excitation are proposed. The maximal stepexcitation efficiency is achieved at 450 nm.
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