High-Resolution Solid-State Magic Angle Spinning Nuclear Magnetic Resonance Investigations of Surface Hydroxy Groups on Modified Silica Gel Научная публикация
| Журнал |
Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases 1972-1989 (Journal of the Chemical Society, Faraday Transactions 1990-1998, Physical Chemistry Chemical Physics 1999-present )
ISSN: 0300-9599 |
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| Вых. Данные | Год: 1986, Том: 82, Номер: 6, Страницы: 1879-1884 Страниц : 6 DOI: 10.1039/f19868201879 | ||||||
| Авторы |
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Реферат:
1 H, 29Si and 31P magic angle spinning nuclear magnetic resonance measurements have been performed on silica gel and its phosphorus-containing modification. It was possible to separate the proton resonance lines of silanol groups and of phosphorus hydroxy groups at the surface. From the resonance shifts it follows that the latter species possess a remarkably higher acidity. The phosphorus atoms at the surface were found to exist in the pentavalent state. According to the 29Si resonance shifts the silicon atoms of a modified sample have a coordination number of six. The process of partial dehydroxylation and rehydroxylation of the modified surface leads to drastic changes in the phosphorus resonance signals.
Библиографическая ссылка:
Bernstein T.
, Fink P.
, Mastikhin V.M.
, Shubin A.A.
High-Resolution Solid-State Magic Angle Spinning Nuclear Magnetic Resonance Investigations of Surface Hydroxy Groups on Modified Silica Gel
Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases 1972-1989 (Journal of the Chemical Society, Faraday Transactions 1990-1998, Physical Chemistry Chemical Physics 1999-present ). 1986. V.82. N6. P.1879-1884. DOI: 10.1039/f19868201879 WOS Scopus РИНЦ CAPlusCA OpenAlex
High-Resolution Solid-State Magic Angle Spinning Nuclear Magnetic Resonance Investigations of Surface Hydroxy Groups on Modified Silica Gel
Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases 1972-1989 (Journal of the Chemical Society, Faraday Transactions 1990-1998, Physical Chemistry Chemical Physics 1999-present ). 1986. V.82. N6. P.1879-1884. DOI: 10.1039/f19868201879 WOS Scopus РИНЦ CAPlusCA OpenAlex
Даты:
| Поступила в редакцию: | 22 июл. 1985 г. |
Идентификаторы БД:
| Web of science: | WOS:A1986D444000020 |
| Scopus: | 2-s2.0-0037684007 |
| РИНЦ: | 41798498 |
| Chemical Abstracts: | 1986:544745 |
| Chemical Abstracts (print): | 105:144745 |
| OpenAlex: | W2037571223 |