Journal
JOURNAL OF MAGNETIC RESONANCE
Volume 204, Issue 2, Pages 256-265Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jmr.2010.03.001
Keywords
NMR; CPMG; QCPMG; WURST; Second-order phase; (CI)-C-35; Solid-state; NHMFL; Zirconocene dichloride
Funding
- National High Magnetic Field Laboratory through National Science Foundation [DMR-0084173]
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The practical aspects of applying CPMG for acquisition of wideline powder patterns are examined. it is shown that most distortions/modulations of spikelet spectra can be traced to the incoherent signal averaging from multiple coherence transfer pathways. A strategy for minimizing these distortions/modulations is described. Also, a few interesting observations regarding the implementation of the wideline WURST-QCPMG experiment are presented, namely the accumulation of second-order signal phase and the effects of varying the sweep rate and rf field of chirp pulses. (C) 2010 Elsevier Inc. All rights reserved.
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