Abstract: The work will confirm that ¹³C CP/MAS spectral editing at high magnetic field can be achieved by combining the standard series of editing pulse sequences with the TOSS pulse sequence which is used to suppress sidebands. The great spin-lattice relaxation time difference is used as an additional criterion to distinguish nonpronated carbons and methyl carbons in solid. The examples in this paper will show that a general ¹³C CP/MAS spectral editing can be derived from the proper combination of SCPTOSS, SCPPITOSS, LCPDTOSS and a partially relaxed LCPDTOSS spectrum.

Key words: Solid state NMR, CP/MAS spectra editing, Sideband suppression