Supercycled SW(f)-TPPM sequence for heteronuclear dipolar decoupling in solid-state nuclear magnetic resonance |
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| Authors: | Augustine Cyril Kurur Narayanan D |
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| Institution: | a Department of Chemistry, Indian Institute of Technology, New Delhi 110 016, India |
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| Abstract: | The performance of a supercycled SW(f)-TPPM sequence for heteronuclear dipolar decoupling in solid-state NMR is analyzed here. The decoupling performance of this sequence with respect to experimental parameters, such as, the phase angle, proton offset and MAS frequency is studied. A comparison is made with two other commonly used decoupling schemes in solid-state NMR namely, SPINAL-64 and SW(f)-TPPM, on a sample of U-13C-labeled tyrosine. Our results show that supercycled SW(f)-TPPM performs better than the former sequences. Also, numerical spin dynamics studies are presented which support the experimentally observed efficiency in the decoupling. |
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| Keywords: | Solid-state NMR 13C– 1H dipolar decoupling Supercycled SWf-TPPM SWf-TPPM SPINAL-64 |
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