A new type of C+⋯Hδ−(C=) bond in adducts of vinyl carbocations with alkenes Научная публикация
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Scientific Reports
ISSN: 2045-2322 |
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Вых. Данные | Год: 2024, Том: 14, Номер: 1, Номер статьи : 8818, Страниц : 8 DOI: 10.1038/s41598-024-58109-4 | ||
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Реферат:
By X-ray diffraction analysis and IR spectroscopy, it was established here that vinyl carbocations C3H5+/C4H7+ with carborane counterion CHB11Cl11− form stable monosolvates C3H5+⋅C3H6/C4H7+⋅C4H8 with molecules of alkenes C3H6/C4H8. They contain molecular group =C+⋯Hδ−–Cδ+= with a new type of bond formed by the H atom of the H–C= group of the alkene with the C atom of the C+=C group of the carbocation. The short C+----Cδ+ distance, equal to 2.44 Å, is typical of that of X----X in proton disolvates (L2H+) with an quasi-symmetrical X–H+⋯X moiety (where X = O or N) of basic molecule L. The nature of the discovered bond differs from that of the classic H–bond by an distribution of electron density: the electron–excessive Hδ− atom from the (=)C–H group of the alkene is attached to the C+ atom of the carbocation, on which the positive charge is predominantly concentrated. Therefore, it can be called an inverse hydrogen bond.
Библиографическая ссылка:
Stoyanov E.S.
, Bagryanskaya I.Y.
, Stoyanova I.V.
A new type of C+⋯Hδ−(C=) bond in adducts of vinyl carbocations with alkenes
Scientific Reports. 2024. V.14. N1. 8818 :1-8. DOI: 10.1038/s41598-024-58109-4 Scopus
A new type of C+⋯Hδ−(C=) bond in adducts of vinyl carbocations with alkenes
Scientific Reports. 2024. V.14. N1. 8818 :1-8. DOI: 10.1038/s41598-024-58109-4 Scopus
Даты:
Поступила в редакцию: | 19 дек. 2023 г. |
Принята к публикации: | 25 мар. 2024 г. |
Опубликована online: | 10 апр. 2024 г. |
Опубликована в печати: | 1 дек. 2024 г. |
Идентификаторы:
Scopus | 2-s2.0-85189992855 |
OpenAlex | W4394693789 |