Uniform-sign cross-peak double-quantum-filtered correlation spectroscopy

We detail the uniform-sign cross-peak double-quantum-filtered correlation spectroscopy (UC2QF COSY) experiment, a new through-bond correlation method for disordered solids. This experiment is a refocused version of the popular double-quantum-filtered correlation spectroscopy experiment in liquids. I...

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Bibliographic Details
Published in:Journal of magnetic resonance (1997) 2004-06, Vol.168 (2), p.327-335
Main Authors: Mueller, Leonard J., Elliott, Douglas W., Leskowitz, Garett M., Struppe, Jochem, Olsen, Ryan A., Kim, Kee-Chan, Reed, Christopher A.
Format: Article
Language:English
Subjects:
Natural abundance 13C correlation
Scalar-coupling-driven correlation
Solid-state NMR
Through-bond correlation
UC2QF COSY
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Summary:We detail the uniform-sign cross-peak double-quantum-filtered correlation spectroscopy (UC2QF COSY) experiment, a new through-bond correlation method for disordered solids. This experiment is a refocused version of the popular double-quantum-filtered correlation spectroscopy experiment in liquids. Its key feature is that it provides in-phase and doubly absorptive line shapes, which renders it robust for chemical shift correlation in solids. Both theory and experiment point to distinct advantages of this protocol, which are illustrated by several experiments under challenging conditions, including fast magic-angle spinning (30 kHz), anisotropic molecular motion, and 13C correlation spectroscopy at the natural abundance isotope level.
ISSN:1090-7807
1096-0856
DOI:10.1016/j.jmr.2004.03.017