|
ИСТИНА |
Войти в систему Регистрация |
Интеллектуальная Система Тематического Исследования НАукометрических данных |
||
Features of styryl dye crystal packings and their influence on [2 + 2] photocycloaddition reaction with single crystal retentionстатья
Статья опубликована в высокорейтинговом журнале
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: 19 сентября 2015 г.
- Авторы: Kuz’mina L.G., Vedernikov A.I., Howard J.A.K, Alfimov M.V., Gromov S.P.
- Журнал: CrystEngComm
- Том: 17
- Номер: 24
- Год издания: 2015
- Издательство: Royal Society of Chemistry
- Местоположение издательства: United Kingdom
- Первая страница: 4584
- Последняя страница: 4591
- DOI: 10.1039/C5CE00653H
- Аннотация: A new styryl dye of the 2-benzothiazole series which contains three methoxy groups and an iodide anion was synthesized. Three triclinic crystal forms of this dye were investigated by single crystal X-ray diffraction. All the modifications were shown to contain centrosymmetrically related stacks of cations with the syn- “head-to-tail” mutual arrangement. Stacks of cations are arranged as dimeric pairs with short interatomic distances between the ethylene group carbon atoms, d1 = 3.54–3.75 Å and significantly longer analogous distances between the adjacent pairs, d2 = 4.61–4.68 Å. The main difference of the packing consists in various orientations of N-ethyl substituents with respect to the centre of the dimer. The solid phase [2 + 2] photocycloaddition (PCA) reaction resulting in rctt isomer of the cyclobutane derivative, only proceeds in pairs where N-substituents are oriented outward from the centre of the dimeric pair. PCA is accomplished as a “single crystal-to-single crystal” transformation.
- Добавил в систему: Громов Сергей Пантелеймонович