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2D 17O,1H Chemical Shift Correlation Spectroscopy

✍ Scribed by J. Schulte; J. Lauterwein

Publisher: John Wiley and Sons
Year: 1996
Tongue: English
Weight: 349 KB
Volume: 34
Category: Article
ISSN: 0749-1581
DOI: 10.1002/(sici)1097-458x(199609)34:9<703::aid-omr942>3.0.co;2-q

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✦ Synopsis

Two-dimensional "O,'H chemical shift correlation experiments were performed by polarization transfer via the 'J(0H) coupling in 2-hydroxymethyltetrahydrofuran and diethylene glycol monomethyl ether, and also via different 'f(0H) couplings in methyl formate. The experiments were most useful in the discrimination between hydroxyl and ether oxygen resonances. However, their application seems to be limited to small molecules with "0 relaxation times longer than cu. 5 ms. Further, large substrate concentrations are needed, in addition to high temperatures to keep the viscosity low and aprotit solvents to keep proton exchange low.

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