A simple method for analyzing 51V solid-state NMR spectra of complex systems

Annika Fenn; Maria Wächtler; Hergen Breitzke; Axel Buchholz; Ines Lippold; Winfried Plass; Gerd Buntkowsky

doi:10.1016/j.ssnmr.2011.05.001

A simple method for analyzing 51V solid-state NMR spectra of complex systems

Solid State Nucl Magn Reson. 2011 Sep;40(2):60-5. doi: 10.1016/j.ssnmr.2011.05.001. Epub 2011 May 14.

Authors

Annika Fenn¹, Maria Wächtler, Hergen Breitzke, Axel Buchholz, Ines Lippold, Winfried Plass, Gerd Buntkowsky

Affiliation

¹ Institut für Physikalische Chemie, Friedrich-Schiller-Universität Jena, Jena, Germany.

PMID: 21601435
DOI: 10.1016/j.ssnmr.2011.05.001

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.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Magnetic Resonance Spectroscopy / methods*
Statistics as Topic
Vanadium / chemistry*

Substances

Vanadium