Kinetics of the formation of copper β-octaphenylporphyrin complexes in pyridine and acetic acid

The formation kinetics of copper β-octaphenylporphyrin complexes in pyridine and acetic acid is reported and is compared with that of copper β-octamethylporphyrin and dodecaphenylporphyrin complexes. The introduction of electron-donating or electron-withdrawing substituents in the β-positions of the...

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Bibliographic Details
Published in:Russian journal of inorganic chemistry 2010, Vol.55 (9), p.1494-1498
Main Authors: Pukhovskaya, S. G, Efimovich, V. A, Semeikin, A. S, Golubchikov, O. A
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Inorganic Chemistry
Physical Chemistry if Solutions
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Summary:The formation kinetics of copper β-octaphenylporphyrin complexes in pyridine and acetic acid is reported and is compared with that of copper β-octamethylporphyrin and dodecaphenylporphyrin complexes. The introduction of electron-donating or electron-withdrawing substituents in the β-positions of the porphyrin macrocycle change the rate of the complexation reaction by at most one order of magnitude. On passing from the planar porphyrin macrocycle to the heavily distorted one, the rate of the reaction in pyridine (electron donor solvent) and acetic acid (electron acceptor solvent) increases and decreases, respectively, by several orders of magnitude.
ISSN:0036-0236
1531-8613
DOI:10.1134/S0036023610090275