High-Resolution Solid-State Magic Angle Spinning Nuclear Magnetic Resonance Investigations of Surface Hydroxy Groups on Modified Silica Gel | Sciact - CRIS-system of Boreskov Institute of Catalysis

High-Resolution Solid-State Magic Angle Spinning Nuclear Magnetic Resonance Investigations of Surface Hydroxy Groups on Modified Silica Gel Full article

Journal

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

Output data

Year: 1986, Volume: 82, Number: 6, Pages: 1879-1884 Pages count : 6 DOI: 10.1039/f19868201879

Authors

Bernstein Thomas ¹ , Fink Peter ² , Mastikhin Vyaceslav M. ³ , Shubin Aleksandr A. ³

Affiliations

1	Karl-Marx-Universitat, Sektion Physik, DDR-7010 Leipzig, Linnkstrasse 5, German Democratic Republic
2	Friedrich-Schiller Universitat, Sektion Chemie, DDR-6900 Jena, Lessingstrasse 10, German Democratic Republic
3	Siberian Branch of the Academy of Sciences of the U.S.S.R., Institute of Catalysis, SU-630090 Novosibirsk, Prospect Nauki 5, U.S.S.R.

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.

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 ANCAN OpenAlex

Submitted:

Jul 22, 1985

Web of science:	WOS:A1986D444000020
Scopus:	2-s2.0-0037684007
Elibrary:	41798498
Chemical Abstracts:	1986:544745
Chemical Abstracts (print):	105:144745
OpenAlex:	W2037571223

DB	Citing
Web of science	26
Scopus	26
Elibrary	25
OpenAlex	22