|
ИСТИНА |
Войти в систему Регистрация |
ИСТИНА ЦЭМИ РАН |
||
An ESR study of radiation-chemical transformation of 4,4'(5')-di-(tert-butylcyclohexano)-18-crown-6 and its solution in 1-octanol at 77 Kстатья
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: Zakurdaeva O.A., Nesterov S.V., Feldman V.I.
- Журнал: Journal of Radioanalytical and Nuclear Chemistry
- Том: 284
- Номер: 3
- Год издания: 2010
- Издательство: Akademiai Kiado
- Местоположение издательства: Hungary
- Первая страница: 641
- Последняя страница: 645
- DOI: 10.1007/s10967-010-0529-1
- Аннотация: Paramagnetic products stabilized in both 4,4'(5')-di-(tert-butylcyclohexano)-18-crown-6 (DtBuCH18C6) and its solution in 1-octanol upon low temperature (77 K) X-rays irradiation were studied by ESR spectroscopy. Macrocyclic -O-ASH-CH(2)- radicals and acyclic O = C(H)-ASH-O- radicals were found as main radiolysis products in neat DtBuCH18C6. Fraction of acyclic radicals resulting from the macrocycle cleavage was about 50%. No radical products resulted from t-Bu and cyclohexyl fragments were observed. It was concluded that the primary events were essentially concerned with ionization of the polyether moiety. Irradiation of frozen DtBuCH18C6 solutions in 1-octanol resulted in formation of radicals both from crown ether and alcohol.
- Добавил в систему: Фельдман Владимир Исаевич