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Para‐hydrogen induced polarization of Si‐29 NMR resonances as a potentially useful tool for analytical applications
Author(s) -
Ellena Silvano,
Viale Alessandra,
Gobetto Roberto,
Aime Silvio
Publication year - 2012
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.3832
Subject(s) - chemistry , moiety , polarization (electrochemistry) , hyperpolarization (physics) , trimethylsilyl , molecule , hydrogen , nmr spectra database , nuclear magnetic resonance spectroscopy , computational chemistry , spectral line , stereochemistry , organic chemistry , physics , astronomy
Para‐hydrogen–induced polarization effects have been observed in the 29 Si NMR spectra of trimethylsilyl para‐hydrogenated molecules. The high signal enhancements and the long T 1 values observed for the 29 Si hyperpolarized resonances point toward the possibility of using 29 Si for hyperpolarization applications. A method for the discrimination of multiple compounds and/or complex mixtures of hydroxylic compounds (such as steroids), consisting of the silylization of alcoholic functionalities with an unsaturated silylalkyl moiety and subsequent reaction with para‐H 2 , is proposed. Copyright © 2012 John Wiley & Sons, Ltd.