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Chemical Properties of Dialkyl Halonium Ions (R(2)Hal(+)) and Their Neutral Analogues, Methyl Carboranes, CH3-(CHB(11)Hal(11)) Where Hal = F, Cl Научная публикация

Журнал Journal of Physical Chemistry A
ISSN: 1089-5639
Вых. Данные Год: 2017, Том: 121, Номер: 15, Страницы: 2918-2923 Страниц : 6 DOI: 10.1021/acs.jpca.7b01203
Авторы Stoyanov Evgenii S. 1,2
Организации
1 (Данные Web of science) Russian Acad Sci, Vorozhtsov Novosibirsk Inst Organ Chem, Siberian Branch, Novosibirsk 630090, Russia
2 (Данные Web of science) Novosibirsk State Univ, Natl Res Univ, Dept Nat Sci, Novosibirsk 630090, Russia

Реферат: Chloronium cations in their salts (CnH2n+1)(2)Cl+{CHB11,Cl-11}, with n = 1 to 3 and exceptionally stable carborane anions, are stable at ambient and elevated temperatures. The temperature at which they decompose to carbocations with HCl elimination (below 150 degrees C) decreases with the increasing n from 1 to 3 because of increasing ionicity of C-Cl bonds in the C-Cl+-C bridge. At room temperature, the salts of cations with n >= 4 [starting from t-Bu2Cl+ or (cyclo-C5H11)(2)Cl+ ]are unstable and decompose. With decreasing chloronium ion stability, their ability to interact with chloroalkanes to form oligomeric cations increases. It was shown indirectly that unstable salt of fluoronium ions (CH3)(2)F+(CHB11F11-) must exist at low temperatures. The proposed (CH3)(2)F+ cation is much more reactive than-the corresponding chloronium showing at room temperature chemical properties expected of (CH3)(2)Cl+ at elevated temperatures.
Библиографическая ссылка: Stoyanov E.S.
Chemical Properties of Dialkyl Halonium Ions (R(2)Hal(+)) and Their Neutral Analogues, Methyl Carboranes, CH3-(CHB(11)Hal(11)) Where Hal = F, Cl
Journal of Physical Chemistry A. 2017. V.121. N15. P.2918-2923. DOI: 10.1021/acs.jpca.7b01203 WOS Scopus РИНЦ OpenAlex
Даты:
Опубликована online: 6 апр. 2017 г.
Опубликована в печати: 20 апр. 2017 г.
Идентификаторы БД:
Web of science: WOS:000400039000008
Scopus: 2-s2.0-85020030045
РИНЦ: 31027999
OpenAlex: W2599527586
Цитирование в БД:
БД Цитирований
Web of science 11
Scopus 11
РИНЦ 12
OpenAlex 13
Альметрики: