Unusual Hydrogen Bonding in L-Cysteine Hydrogen Fluoride Научная публикация
Журнал |
Acta Crystallographica Section C
, E-ISSN: 2053-2296 |
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Вых. Данные | Год: 2015, Том: 71, Номер: 8, Страницы: 733-741 Страниц : 9 DOI: 10.1107/s2053229615013601 | ||||||
Ключевые слова | amino acid salt, bond/angle distribution, crystal structure, dimeric cation, IR spectroscopy, L-cysteine hydrogen fluoride, short hydrogen bonds | ||||||
Авторы |
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Организации |
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Реферат:
L-Cysteine hydrogen fluoride, or bis(L-cysteinium) difluoride-L-cysteine-hydrogen fluoride (1/1/1), 2C3H8NO2S+·2F-·C3H7NO2S·HF or L-Cys+(L-Cys...L-Cys+)F-(F-...H-F), provides the first example of a structure with cations of the `triglycine sulfate' type, i.e. A+(A...A+) (where A and A+ are the zwitterionic and cationic states of an amino acid, respectively), without a doubly charged counter-ion. The salt crystallizes in the monoclinic system with the space group P21. The dimeric (L-Cys...L-Cys+) cation and the dimeric (F-...H-F) anion are formed via strong O-H...O or F-H...F hydrogen bonds, respectively, with very short O...O [2.4438 (19) Å] and F...F distances [2.2676 (17) Å]. The F...F distance is significantly shorter than in solid hydrogen fluoride. Additionally, there is another very short hydrogen bond, of O-H...F type, formed by a L-cysteinium cation and a fluoride ion. The corresponding O...F distance of 2.3412 (19) Å seems to be the shortest among O-H...F and F-H...O hydrogen bonds known to date. The single-crystal X-ray diffraction study was complemented by IR spectroscopy. Of special interest was the spectral region of vibrations related to the above-mentioned hydrogen bonds.
Библиографическая ссылка:
Minkov V.S.
, Ghazaryan V.V.
, Boldyreva E.V.
, Petrosyan A.M.
Unusual Hydrogen Bonding in L-Cysteine Hydrogen Fluoride
Acta Crystallographica Section C. 2015. V.71. N8. P.733-741. DOI: 10.1107/s2053229615013601 WOS Scopus
Unusual Hydrogen Bonding in L-Cysteine Hydrogen Fluoride
Acta Crystallographica Section C. 2015. V.71. N8. P.733-741. DOI: 10.1107/s2053229615013601 WOS Scopus
Даты:
Поступила в редакцию: | 1 июн. 2015 г. |
Принята к публикации: | 16 июл. 2015 г. |
Опубликована online: | 25 июл. 2015 г. |
Опубликована в печати: | 1 авг. 2015 г. |
Идентификаторы БД:
Web of science | WOS:000359195500018 |
Scopus | 2-s2.0-84952783386 |
Chemical Abstracts | 2015:1272728 |
Chemical Abstracts (print) | 169:396223 |
OpenAlex | W1025119655 |