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ELECTRON SPIN RESONANCE OF TRIPLET STATES AND FREE RADICALS APPEARING IN PORPHYRINS, AROMATIC AMINO-ACIDS AND PROTEINS UNDER THE EFFECT OF LIGHT |
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| Authors: | O. A. Azizova Z. P. Gribova L. P. Kayushin M. K. Pulatova |
| Affiliation: | Institute of Biological Physics, Academy of Sciences of the USSR, Moscow |
| Abstract: | Abstract— The electron paramagnetic resonance (EPR) of the triplet excited state of solutions of a series of porphyrins and aromatic amino-acids has been studied at 77°K. It has been shown that for some of the compounds it is possible to observe EPR for transitions with δ M =±1, ±2. It has been shown that photoreactions in solid solutions of porphyrins and aromatic amino-acids proceed through the triplet excited state. Reactions of photosensitized deamination of aliphatic amino-acids in solid aqueous solutions at 77°K by aromatic compounds have been studied. |
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