title: Chemical shift correlation at high MAS frequencies employing low-power symmetry-based mixing schemes.
abstract: An approach for conveniently implementing low-power CN ( n ) (ν) and RN ( n ) (ν) symmetry-based band-selective mixing sequences for generating homo- and heteronuclear chemical shift correlation NMR spectra of low γ nuclei in biological solids is demonstrated. Efficient magnetisation transfer characteristics are achieved by selecting appropriate symmetries requiring the application of basic RF elements of relatively long duration and numerically tailoring the RF field modulation profile of the basic element. The efficacy of the approach is experimentally shown by the acquisition of (15)N-(13)C dipolar and (13)C-(13)C scalar and dipolar coupling mediated chemical shift correlation spectra at representative MAS frequencies.
authors.affiliation: Department of Physics, Ubon Ratchathani University, Thailand. cherbst@fli-leibniz.de
authors.forename: Christian
authors.initials: C
authors.lastname: Herbst
authors.forename: Jirada
authors.initials: J
authors.lastname: Herbst
authors.forename: Jörg
authors.initials: J
authors.lastname: Leppert
authors.forename: Oliver
authors.initials: O
authors.lastname: Ohlenschläger
authors.forename: Matthias
authors.initials: M
authors.lastname: Görlach
authors.forename: Ramadurai
authors.initials: R
authors.lastname: Ramachandran
mesh_terms: D002247:Carbon Isotopes / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D009587:Nitrogen Isotopes / Q000737:chemistry
chemical_list: D002247:Carbon Isotopes; D009587:Nitrogen Isotopes