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Detection of long-range couplings in oligomers and evaluation of coupling constants in polymers. Application of the 1D COSY technique

✍ Scribed by Stanislava Uhrínová; Dušan Uhrín; Tibor Liptaj; Gy. Batta

Publisher
John Wiley and Sons
Year
1991
Tongue
English
Weight
506 KB
Volume
29
Category
Article
ISSN
0749-1581

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✦ Synopsis

Onedimensional COSY is shown to be a promising technique for the detection of small, unresolved protowproton coupling constants. Under certain circumstances the method can be more effective than two-dimensional phasesensitive COSY. A detailed analysis of the experimental conditions is presented. The possible application of the method in oligosaccharide sequencing is outlined. Another potential use of one-dimensional COSY is in the evaluation of coupling constants in macromolecules. In this case the efficiency of the polarization transfer is decreased owing to the fast transverse relaxation times of the protons. DISCO analysis was applied for the determination OX coupling constants in unresolved multiplets.

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