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Combined DEPT 1D and INEPT DQF COSY 2D Experiments in 29Si NMR Spectroscopy of Alkoxysilane Polymers. 1—New Polarization Transfer NMR Methods

✍ Scribed by P. Lux; F. Brunet; J. Virlet; B. Cabane

Publisher: John Wiley and Sons
Year: 1996
Tongue: English
Weight: 718 KB
Volume: 34
Category: Article
ISSN: 0749-1581
DOI: 10.1002/(sici)1097-458x(199602)34:2<100::aid-omr844>3.0.co;2-4

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✦ Synopsis

The polarization transfer in the DEPT experiment is analysed as a function of transfer time A and variable pulse angle 8 for a spin system Zm I:. Zg S. This DEPT experiment applied to 29Si NMR may be tuned for optimum sensitivity and quantitative information and then used as an editing method for the 1D 29Si NMR spectra of alkoxysilane polymers in solution.

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Combined DEPT 1D and INEPT DQF COSY 2D E

Combined DEPT 1D and INEPT DQF COSY 2D Experiments in 29Si NMR Spectroscopy of Alkoxysilane Polymers. 2—Applications of 29Si NMR to Polymerisation Reactions in Dimethyldiethoxysilane.

✍ P. Lux; F. Brunet; J. Virlet; B. Cabane 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 545 KB

Polymerization reactions in dimethyldiethoxylsilane were studied using a new high-resolution 29Si NMR method. This method is a combination of two polarization transfer experiments (DEPT) with a 29Si-29Si two-dimensional INEPT DQF COSY NMR experiment. The structures of oligomers were identified, incl