STUDY OF PHOTOCHEMICAL ACTIVITY OF FEOPHITIN AND SEPARATELY OBTAINED CHLOROPHYLLS IN TYPE OF METAL- PORPHYRIN COMPLEXES
Keywords:
singlet and triplet levels, chlorophylls a and b, pheophytin, metalloporphyrin complexes, exciton, in vitroAbstract
Aim. Obtaining pheophytin from chlorophylls a and b isolated from the Knotweed plant, as well as chlorophylls in the form of products of replacement of magnesium ions with ions of other metals, with the study of the photochemical activity of these products.
Methods. Methods based on measuring the optical density of the products obtained from photosynthetic parts of a plant were used, a visual observation was also carried out for the change in their color.
Results. The results are presented in the form of photographs of the extract of chlorophylls a and b obtained from this extract of pheophytin, copper-porphyrin complex and their absorption spectra.
Conclusions. Conclusions are drawn on the ability of these products to photooxidation; it is also assumed that the mechanism of photooxidation of natural chlorophyll and the mechanism of in vitro production of pheophytin are similar.
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