title: Supercycled SW(f)-TPPM sequence for heteronuclear dipolar decoupling in solid-state nuclear magnetic resonance.
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.
authors.affiliation: Department of Chemistry, Indian Institute of Technology, New Delhi 110 016, India. cyril.augustinev@gmail.com
authors.forename: Cyril
authors.initials: C
authors.lastname: Augustine
authors.forename: Narayanan D
authors.initials: ND
authors.lastname: Kurur
mesh_terms: D000465:Algorithms; D002250:Carbon Radioisotopes / Q000737:chemistry; D004574:Electromagnetic Fields; D009682:Magnetic Resonance Spectroscopy / Q000295:instrumentation / Q000379:methods*; D014443:Tyrosine / Q000737:chemistry
chemical_list: D002250:Carbon Radioisotopes; D014443:Tyrosine