期刊
JOURNAL OF MAGNETIC RESONANCE
卷 156, 期 1, 页码 79-96出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1006/jmre.2002.2525
关键词
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Solid-state magic-angle-spinning NMR pulse sequences which implement zero-quantum homonuclear dipolar recoupling are designed with the assistance of symmetry theory. The pulse sequences are compensated on a short time scale by the use of composite pulses and on a longer time scale by the use of supercycles. C-13 dipolar recoupling is demonstrated in powdered organic solids at high spinning frequencies. The new sequences are compared to existing pulse sequences by means of numerical simulations. Experimental two-dimensional magnetization exchange spectra are shown for [U-(13) C]-L-tyrosine. (C) 2002 Elsevier Science (USA).
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