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

Fenn, A. and Wächtler, M. and Breitzke, H. and Buchholz, A. and Lippold, I. and Plass, W. and Buntkowsky, G. :
A simple method for analyzing V-51 solid-state NMR spectra of complex systems.
[Online-Edition: <Go to ISI>://WOS:000295020700005]
In: Solid State Nuclear Magnetic Resonance, 40 (2) pp. 60-65.
[Article] , (2011)

Official URL: <Go to ISI>://WOS:000295020700005

Abstract

Five vanadium complexes as models for biological systems were investigated using V-51-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 eta(Q), isotropic chemical shift delta(iso),chemical shift anisotropy delta(sigma) and asymmetry of the CSA tensor eta(sigma)) are presented. These results are of particular importance with respect to the analysis of the V-51-MAS-NMR spectra of vanadium moieties in biological matrices such as vanadium chloroperoxidase, which show hitherto unexplained low intensity of the satellite sideband pattern. (C) 2011 Elsevier Inc. All rights reserved.

Item Type: Article
Erschienen: 2011
Creators: Fenn, A. and Wächtler, M. and Breitzke, H. and Buchholz, A. and Lippold, I. and Plass, W. and Buntkowsky, G.
Title: A simple method for analyzing V-51 solid-state NMR spectra of complex systems
Language: German
Abstract:

Five vanadium complexes as models for biological systems were investigated using V-51-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 eta(Q), isotropic chemical shift delta(iso),chemical shift anisotropy delta(sigma) and asymmetry of the CSA tensor eta(sigma)) are presented. These results are of particular importance with respect to the analysis of the V-51-MAS-NMR spectra of vanadium moieties in biological matrices such as vanadium chloroperoxidase, which show hitherto unexplained low intensity of the satellite sideband pattern. (C) 2011 Elsevier Inc. All rights reserved.

Journal or Publication Title: Solid State Nuclear Magnetic Resonance
Volume: 40
Number: 2
Uncontrolled Keywords: vanadate model system v-51-nmr satellite transitions modeling supramolecular interactions substituted n-salicylidenehydrazides vanadium-dependent haloperoxidases anisotropic shielding tensors fungus curvularia-inaequalis density-functional theory structural-characterization dioxovanadium(v) complexes chemical-shifts oxovanadium(v) complexes
Divisions: 07 Fachbereich Chemie > Physical Chemistry
07 Fachbereich Chemie
Date Deposited: 27 Oct 2014 20:39
Official URL: <Go to ISI>://WOS:000295020700005
Additional Information:

822CG Times Cited:4 Cited References Count:59

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