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Supramolecular architecture of crown-containing styryl dyes: Part I. Crystal and molecular structures of the acetonitrile solvate monohydrate of the potassium iodide complex with benzo-15-crown-5 ether dye based on methylquinoline iodideстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
- Авторы: Kuz'mina L.G., Churakov A.V., Howard J.A.K, Fedorova O.A., Gromov S.P., Alfimov M.V.
- Журнал: Crystallography Reports
- Том: 48
- Номер: 4
- Год издания: 2003
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 613
- Последняя страница: 622
- DOI: 10.1134/1.1595189
- Аннотация: The structure of a single crystal of the acetonitrile solvate monohydrate of the potassium iodide complex with benzo-15-crown-5 ether dye based on methylquinoline iodide (I) is determined by X-ray diffraction. It is established that the single crystal contains positively charged molecules of benzocrown ether photodye (D), K+ cations, I- anions, and water and acetonitrile solvate molecules in the ratio 1 : 0.5 : 1.5 : 1 : 1, respectively. The K+ cation and one of the I(-)anions occupy special positions along the twofold axis. The K+ cation is coordinated by ten oxygen atoms of the crown ether fragments of two D molecules to form the [D2K](3+) complex. Inside the complex, two aromatic quinoline fragments are involved in a stacking interaction. The crossed mutual arrangement of the ethylene fragments and the considerable distance between them exclude the occurrence of intramolecular photochemical [2 + 2]cycloaddition reactions. In the crystal, the [D2K](3+) cationic complexes form stacks along the b axis. The adjacent complexes in a stack are related through the center of symmetry and, therefore, are arranged in a head-to-tail manner. The double bonds of the neighboring molecular cations D in a stack are strictly parallel to each other and are separated by a distance of 3.754 Angstrom. This geometry is favorable to the intermolecular cycloaddition reaction that should result in the formation of the syn head-to-tail isomer. (C) 2003 MAIK "Nauka/Interperiodica".
- Добавил в систему: Громов Сергей Пантелеймонович