Two-dimensional exchange difference spectroscopy: applications to indirect observation of quadrupolar relaxation

A novel type of difference spectroscopy is proposed to improve two-dimensional exchange spectroscopy by reducing diagonal peaks which are often dominant in complex cases such as in 2-dimensional nuclear Overhauser effect spectra of biopolymers. The diagonal peaks appear with neg. algebraic sign and amplitudes equal to the sums of all cross-peaks appearing in a column or row of the 2-dimensional exchange spectra, agreeing with the elements of the corresponding exchange matrixes. The technique is applied to the indirect observation of the quadrupolar relaxation of D. [on SciFinder (R)]

Published in:
Molecular Physics, 47, 2, 319-28

 Record created 2006-02-22, last modified 2018-03-17

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