Authors: | Suter, Dieter Liu, S. B. Pines, A. |
Title: | Multiple quantum NMR excitation with a one-quantum Hamiltonian |
Language (ISO): | en |
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. |
URI: | http://hdl.handle.net/2003/25321 http://dx.doi.org/10.17877/DE290R-4001 |
Publishers Link: | http://e3.physik.tu-dortmund.de/~suter/eprints/SingleQuantumExcitation.pdf |
Issue Date: | 2001-11-16 |
Provenance: | Elsevier |
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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