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Titolo:
DETERMINATION OF THE STRUCTURE OF ALKOXYSILANE POLYMERS IN SOLUTION BY NATURAL-ABUNDANCE 2-DIMENSIONAL SI-29-SI-29 INEPT DQF COSY NMR
Autore:
LUX P; BRUNET F; DESVAUX H; VIRLET J;
Indirizzi:
CEA,CTR ETUD SACLAY,SERV CHIM MOLEC,CNRS,URA 331 F-91191 GIF SUR YVETTE FRANCE CEA,CTR ETUD SACLAY,SERV CHIM MOLEC,CNRS,URA 331 F-91191 GIF SUR YVETTE FRANCE
Titolo Testata:
Magnetic resonance in chemistry
fascicolo: 7, volume: 31, anno: 1993,
pagine: 623 - 631
SICI:
0749-1581(1993)31:7<623:DOTSOA>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Soggetto:
NUCLEAR-MAGNETIC-RESONANCE; LONG-RANGE COUPLINGS; POLARIZATION TRANSFER; SI-29 NMR; STRUCTURE ELUCIDATION; QUANTUM COHERENCE; SPECTROSCOPY; CONNECTIVITIES; ENHANCEMENT; SILICATE;
Keywords:
SI-29 NMR; SILOXANE; ALKOXYSILANE; DIETHOXYDIMETHYSILANE; POLYMERS; OLIGOMERS; 2D NMR INEPT DQF COSY; SI-29-SI-29 NATURAL ABUNDANCE NMR CORRELATIONS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
43
Recensione:
Indirizzi per estratti:
Citazione:
P. Lux et al., "DETERMINATION OF THE STRUCTURE OF ALKOXYSILANE POLYMERS IN SOLUTION BY NATURAL-ABUNDANCE 2-DIMENSIONAL SI-29-SI-29 INEPT DQF COSY NMR", Magnetic resonance in chemistry, 31(7), 1993, pp. 623-631

Abstract

In order to determine the nature and the structure of polymers formedby condensation of alkoxysilanes, a two-dimensional INEPT double quantum filtered COSY NMR experiment was developed to observe Si-29-Si-29 correlations at Si-29 natural abundance. This experiment was tested ona mixture containing a trimer, [(CH3)3SiO]2Si(CH3)2, and a tetramer, [(CH3)3SiOSi(CH3)2]2O. This 2D INEPT DQF COSY experiment was then usedto investigate the nature and the structure of the polymers which areformed in the early stages of the condensation reaction of diethoxydimethylsilane (DEDMS) in a DEDMS-water mixture containing a small amount of water at low pH (1.0).

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 13/07/20 alle ore 16:36:39