Summary.
The performance of three different spin decoupling schemes, CW, TPPM, and SPINAL-64 is compared, by recording proton decoupled 13C NMR spectra of a crystalline glycine sample, with 20% isotopic labelling. At a magnetic field of B 0 = 14.1 T, the two phase modulated pulse schemes, TPPM and SPINAL-64, are shown to give decisively better results than CW decoupling, and the SPINAL-64 sequence is found to perform better than TPPM. It is suggested that in NMR of crystalline solids, SPINAL-64 offers a viable and competitive alternative to the well established TPPM decoupling technique, especially at higher magnetic fields.
Similar content being viewed by others
Author information
Authors and Affiliations
Additional information
Corresponding author. E-mail: thomas.braeuniger@durham.ac.uk
Received May 6, 2002; accepted May 22, 2002
Rights and permissions
About this article
Cite this article
Bräuniger, T., Wormald, P. & Hodgkinson, P. Improved Proton Decoupling in NMR Spectroscopy of Crystalline Solids Using the SPINAL-64 Sequence. Monatshefte für Chemie 133, 1549–1554 (2002). https://doi.org/10.1007/s00706-002-0501-z
Issue Date:
DOI: https://doi.org/10.1007/s00706-002-0501-z