Para-hydrogen induced polarization of Si-29 NMR resonances as a potentially useful tool for analytical applications.
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.
Department of Chemistry, Molecular Biotechnology Centre, Via Nizza 52, 10126 Torino, Italy.
Silvano
S
Ellena
Alessandra
A
Viale
Roberto
R
Gobetto
Silvio
S
Aime
D000438:Alcohols / Q000032:analysis*; D006859:Hydrogen / Q000737:chemistry*; D007554:Isotopes; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D017646:Organosilicon Compounds / Q000032:analysis* / Q000138:chemical synthesis; D012825:Silicon / Q000737:chemistry*; D013256:Steroids / Q000032:analysis*
D000438:Alcohols; D007554:Isotopes; D017646:Organosilicon Compounds; D013256:Steroids; D006859:Hydrogen; D012825:Silicon