Issue 13, 2011
From the journal:

Physical Chemistry Chemical Physics

Protonation of the oxygen axial ligand in galactose oxidase model compounds as seen with high resolution X-ray emission experiments and FEFF simulations

Ana Mijovilovich,*a   Sylvain Hamman,b   Fabrice Thomas,b   Frank M. F. de Groota  and  Bert M. Weckhuysen*a  

* Corresponding authors

a Department of Inorganic Chemistry and Catalysis, Utrecht University, Debye Institute for Nanomaterials Science, Sorbonnelaan 16, 3584 CA Utrecht, The Netherlands
E-mail: ana_mijo@yahoo.com, b.m.weckhuysen@uu.nl
Fax: +31 (0)30 251 1027
Tel: +31 (0)30 253 7400

b Département de Chimie Moléculaire, Chimie Inorganique Redox Biomimétique (CIRE), UMR-5250, Université Joseph Fourier, BP 53, 38041 Grenoble Cedex 9, France

Abstract

X-ray Emission Spectroscopy (XES) crossover peaks were shown to be sensitive to the protonation state of solvent molecules in the Zn protein carbonic anhydrase and its model compounds. Here we extend such studies to galactose oxidase models i.e.Cu(II) open d-shell systems, illustrating that XES combined with FEFF8 simulations reflect changes in the protonation state of the phenolate ligand for the copper center.

Graphical abstract: Protonation of the oxygen axial ligand in galactose oxidase model compounds as seen with high resolution X-ray emission experiments and FEFF simulations

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Article information

DOI
https://doi.org/10.1039/C0CP01144D
Article type
Paper
Submitted
11 Jul 2010
Accepted
22 Dec 2010
First published
31 Jan 2011

Phys. Chem. Chem. Phys., 2011,13, 5600-5604

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Protonation of the oxygen axial ligand in galactose oxidase model compounds as seen with high resolution X-ray emission experiments and FEFF simulations

A. Mijovilovich, S. Hamman, F. Thomas, F. M. F. de Groot and B. M. Weckhuysen, Phys. Chem. Chem. Phys., 2011, 13, 5600 DOI: 10.1039/C0CP01144D

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