Investigation of Acidic and Coordination Properties of Octabromo-Substituted Porphyrins in the System of 1,8-Diazabicyclo[5,4,0]unde-7-ene-Acetonitrile
- Авторлар: Pukhovskaya S.1, Ivanova Y.2, Semeikin A.1, Syrbu S.1, Kruk N.3
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Мекемелер:
- Ivanovo State University of Chemistry and Technology
- G.A. Krestov Institute of Solution Chemistry
- Belarusian State Technological University
- Шығарылым: Том 89, № 6 (2019)
- Беттер: 1286-1296
- Бөлім: Article
- URL: https://journals.rcsi.science/1070-3632/article/view/222961
- DOI: https://doi.org/10.1134/S1070363219060252
- ID: 222961
Дәйексөз келтіру
Аннотация
Acidity and metal ion coordination are described for three porphyrin derivatives, different in their macrocycle conformation and electronic substitution effects due to bromine substitution in pyrrole rings and trifluorometyl or phenyl groups in meso-positions. Combination of these facts allows modulating both steric and electronic effects on the macrocycle π-conjugated system. The role of electronic substitution effects in the macrocycle deprotonation and metal ion complex formation is found dominating with comparable resonance and inductive contributions, whereas non-planar conformation of reactive species contributes to the reaction rates to a lesser extent. The interaction of two single-electron (a1ueg) and (a2ueg) configurations is studied as a function of non-planar distortions of the molecular structure for the three tetrapyrrole compounds. The additive influence of disturbing factors on the configuration interaction of single-electron (a1ueg) and (a2ueg) configurations in the tetrapyrrole macrocycle is demonstrated.
Негізгі сөздер
Авторлар туралы
S. Pukhovskaya
Ivanovo State University of Chemistry and Technology
Хат алмасуға жауапты Автор.
Email: svetlana.puhovskaya@mail.ru
Ресей, pr. Sheremetevskii 7, Ivanovo, 153460
Yu. Ivanova
G.A. Krestov Institute of Solution Chemistry
Хат алмасуға жауапты Автор.
Email: jjiv@yandex.ru
Ресей, ul. Akademicheskaya 1, Ivanovo, 153045
A. Semeikin
Ivanovo State University of Chemistry and Technology
Email: krukmikalai@yahoo.com
Ресей, pr. Sheremetevskii 7, Ivanovo, 153460
S. Syrbu
Ivanovo State University of Chemistry and Technology
Email: krukmikalai@yahoo.com
Ресей, pr. Sheremetevskii 7, Ivanovo, 153460
N. Kruk
Belarusian State Technological University
Хат алмасуға жауапты Автор.
Email: krukmikalai@yahoo.com
Белоруссия, ul. Sverdlova 13a, Minsk, 220006