Electronic Absorption Spectra and Ligand Structure in the Metal Complexes of Quinizarin

The character of the electronic absorption spectra of the metal complexes with 1,4-dihydroxy-9,10-anthraquinone depends on the ligand state, namely, on the degree of its ionization and predominant contribution of the tautomeric 9,10-, 1,10-, and 1,4-anthraquinoid resonance structures. The known complexes are classified in accordance with the ligand structure. The maximal contribution of the 1,10-anthraquinoid structure of the ligand is observed for the majority of monometal complexes, while that of 9,10-anthraquinoid structure is typical of bimetal complexes. Differences in the composite electronic absorption spectra of the mixed-ligand complexes are explained in terms of contribution of different quinizarin tautomeric forms with different degree of ionization.

Авторы
Редакторы
-
Издательство
-
Номер выпуска
5
Язык
Английский
Страницы
369-374
Статус
Опубликовано
Подразделение
-
Номер
-
Том
29
Год
2003
Организации
  • 1 Peoples' Friendship University, ul. Miklukho-Maklaya 6, Moscow, 117198, Russian Federation
Ключевые слова
1,4 dioxido 9,10 anthraquinone; 10 hydroxy 9 oxido 1,4 anthraquinone; 4 hydroxy 1 oxido 9,10 anthraquinone; 4 hydroxy 9 oxido 1,10 anthraquinone; 4,9 dihydroxy 1,10 anthraquinone; 9 hydroxy 4 oxido 1,10 anthraquinone; 9,10 dihydroxy 1,4 anthraquinone; 9,10 dioxido 1,4 anthraquinone; anthraquinone derivative; ligand; metal complex; quinizarin; unclassified drug; absorption spectroscopy; article; chemical structure; electronic absorption spectroscopy; ionization; qualitative analysis; quantitative analysis; spectroscopy
Дата создания
19.10.2018
Дата изменения
19.10.2018
Постоянная ссылка
https://repository.rudn.ru/ru/records/article/record/61/