title: 1H homonuclear dipolar decoupling using rotor-synchronised pulse sequences: towards pure absorption phase spectra.
abstract: We demonstrate a pulse sequence using symmetry-based rotor-synchronised RN(n)(nu) sequences for homonuclear dipolar decoupling that achieves pure absorption phase high-resolution (1)H spectra in solid-state NMR. This sequence is compared with the phase-modulated Lee-Goldburg scheme. Experimental results are shown for samples of glycine and L-histidine.HCl.H(2)O for magic-angle-spinning frequencies in the range of 14-30 kHz and at two different magnetic fields.
authors.affiliation: Department of Chemical Sciences, Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Mumbai 400 005, India.
authors.forename: Subhradip
authors.initials: S
authors.lastname: Paul
authors.forename: Rajendra Singh
authors.initials: RS
authors.lastname: Thakur
authors.forename: M H
authors.initials: MH
authors.lastname: Levitt
authors.forename: P K
authors.initials: PK
authors.lastname: Madhu
mesh_terms: D000465:Algorithms; D004574:Electromagnetic Fields; D005998:Glycine / Q000737:chemistry; D006639:Histidine / Q000737:chemistry; D006859:Hydrogen / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy / Q000379:methods / Q000706:statistics & numerical data*
chemical_list: D006639:Histidine; D006859:Hydrogen; D005998:Glycine