Thermal stability of chlorophyll a derivatives containing hydrophilic groups

Trends in thermal stability of aromatic macroheterocycles based of pheophorbide a and chlorin e 6 containing hydrophilic groups have been revealed by means of thermogravimetric analysis at 298–1223 K under inert atmosphere. Methylpheophorbide a and 13(1)- N -methylamide of chlorin e 6 are the most s...

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Bibliographic Details
Published in:Russian journal of general chemistry 2017-07, Vol.87 (7), p.1557-1561
Main Authors: Berezin, D. B., Makarov, V. V., Guseinov, S. S., Romanenko, Yu. V., Khudyaeva, I. S., Startseva, O. M., Belykh, D. V., Kustov, A. V.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Thermal stability
Thermogravimetric analysis
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Summary:Trends in thermal stability of aromatic macroheterocycles based of pheophorbide a and chlorin e 6 containing hydrophilic groups have been revealed by means of thermogravimetric analysis at 298–1223 K under inert atmosphere. Methylpheophorbide a and 13(1)- N -methylamide of chlorin e 6 are the most stable, the decomposition onset temperature being t o 351 and 333°С. Their functional substitution leads t o the reduction in thermal stability. Depending on the macrocycle structure the decrease in t o can reach 20–200°С.
ISSN:1070-3632
1608-3350
DOI:10.1134/S1070363217070192