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Experimental artefacts in 2D-MAS exchange experiments: non-uniform mixing time within a single 2D run
D Reichert1, G Hempel, H Schneider
1Univ. of Halle, Dept. of Physics, Germany. reichert@physik.uni-halle.de
Solid State Nuclear Magnetic Resonance
|August 7, 1998
Abstract:
The practical realization of rotor-synchronized mixing-times in 2D-MAS exchange experiments without the need for a special hardware is reviewed; its consequence for the 'true mixing time' of the experiment is discussed. We demonstrate influences on experimental rate constants derived from such experiments as well as on the appearance of the 2D-MAS spectra, taken at short mixing times.