Liu, S. B.
|Title:||Multiple quantum NMR excitation with a one-quantum Hamiltonian|
|Abstract:||Excitation of multiple quantum coherence in dipolar coupled spin systems is usually accomplished with a two-quantum multiple pulse sequence which can be time reversed by means of a 90° phase shift. The application of such an excitation scheme to a spin system in thermal equilibrium excites only even orders of multiple quantum coherence. We demonstrate here time reversible pulse sequences that excite all orders of coherence by creating a pure one-quantum average hamiltonian. We also describe pulse schemes which can be used to create pure one- or two-quantum average hamiltonians with variable scaling between +1 and −1. These excitation schemes are relevant to the study of spin clustering by multiple quantum NMR.|
|Rights:||Copyright © 1987 Published by Elsevier Science B.V. All rights reserved.|
|Citation:||Suter, D.; Liu, S. B.; Pines, A.: Multiple quantum NMR excitation with a one-quantum Hamiltonian. In: Chemical Physics Nr. 1, Jg. 114(1987, S. 103-109.|
|Appears in Collections:||Suter, Dieter Prof. Dr.|
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