Ligand discrimination of myoglobin in solution: an iron L-edge X-ray absorption study of the active centre

Kathrin M. Lange; Ronny Golnak; Sébastien Bonhommeau; Emad F. Aziz

doi:10.1039/C3CC37973F

Ligand discrimination of myoglobin in solution: an iron L-edge X-ray absorption study of the active centre†‡

Kathrin M. Lange,^a Ronny Golnak,^b Sébastien Bonhommeau^d and Emad F. Aziz*^bc

* Corresponding authors

^a Max-Born-Institut, Max Born Straße 2A, 12489 Berlin, Germany
E-mail: kathrin.lange@mbi-berlin.de
Tel: +49 30 63921248

^b Joint Ultrafast Dynamics Lab in Solutions and at Interfaces (JULiq), Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Str 15, 12489 Berlin, Germany

^c Freie Universität Berlin, FB Physik, Arnimallee 14, D-14195 Berlin, Germany
E-mail: emad.aziz@helmholtz-berlin.de
Tel: +49 30806215003

^d Université de Bordeaux, Institut des Sciences Moléculaires, CNRS UMR 5255, F-33400 Talence, France

Abstract

Iron L-edge X-ray absorption spectra of the active centre of myoglobin in the met-form, in the reduced form and upon ligation to O₂, CO, NO and CN are presented. The strength of ligation with the iron centre is finger-printed through the variation of the L₃ : L₂ intensity ratio. Charge Transfer Multiplet calculations are performed and give qualitative information about oxidation states as well as charge transfer.

This article is part of the themed collection: Emerging Investigators 2013

Supplementary files

Article type: Communication

DOI: 10.1039/C3CC37973F

Citation: Chem. Commun., 2013,49, 4163-4165

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Ligand discrimination of myoglobin in solution: an iron L-edge X-ray absorption study of the active centre

K. M. Lange, R. Golnak, S. Bonhommeau and E. F. Aziz, Chem. Commun., 2013, 49, 4163
DOI: 10.1039/C3CC37973F
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Chemical Communications

Ligand discrimination of myoglobin in solution: an iron L-edge X-ray absorption study of the active centre†‡

Abstract

Supplementary files

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Ligand discrimination of myoglobin in solution: an iron L-edge X-ray absorption study of the active centre

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