title: A simple method for analyzing 51V solid-state NMR spectra of complex systems.
abstract: Five vanadium complexes as models for biological systems were investigated using (51)V-MAS-NMR spectroscopy. All spectra show an uncommon line shape, which can be attributed to a shorter relaxation time of the satellite transition in contrast to the central one. A method for the reliable analysis of such kind of spectra is presented for the first time and the most important NMR parameters of the investigated complexes (quadrupolar coupling constant C(Q), asymmetry of the EFG tensor η(Q), isotropic chemical shift δ(iso), chemical shift anisotropy δ(σ) and asymmetry of the CSA tensor η(σ)) are presented. These results are of particular importance with respect to the analysis of the (51)V-MAS-NMR spectra of vanadium moieties in biological matrices such as vanadium chloroperoxidase, which show hitherto unexplained low intensity of the satellite sideband pattern.
authors: Institut für Physikalische Chemie, Friedrich-Schiller-Universität Jena, Jena, Germany.
authors: Annika
authors: A
authors: Fenn
authors: Maria
authors: M
authors: Wächtler
authors: Hergen
authors: H
authors: Breitzke
authors: Axel
authors: A
authors: Buchholz
authors: Ines
authors: I
authors: Lippold
authors: Winfried
authors: W
authors: Plass
authors: Gerd
authors: G
authors: Buntkowsky