Observation of Fe−H/D Modes by Nuclear Resonant Vibrational Spectroscopy

Metal−hydrogen bonding is important in chemistry and catalysis, but H atoms are often difficult to observe, especially in metalloproteins. In this work we show that Fe−H interactions can be probed by nuclear resonance vibrational spectroscopy at the 14.4 keV 57Fe nuclear resonance. An important adva...

Full description

Saved in:
Bibliographic Details
Published in:Journal of the American Chemical Society 2003-04, Vol.125 (14), p.4016-4017
Main Authors: Bergmann, Uwe, Sturhahn, Wolfgang, Linn, Donald E, Jenney, Francis E, Adams, Michael W. W, Rupnik, Kresimir, Hales, Brian J, Alp, Ercan E, Mayse, Aaron, Cramer, Stephen P
Format: Article
Language:English
Subjects:
advanced photon source
Atomic and molecular physics
ATOMS
BASIC BIOLOGICAL SCIENCES
BONDING
CATALYSIS
CHEMISTRY
Exact sciences and technology
GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
Hydrogen - chemistry
Hydrogenase - chemistry
Iron Compounds - chemistry
METALLOPROTEINS
Molecular properties and interactions with photons
Molecular spectra
Nitrogenase - chemistry
Physics
Pyrococcus furiosus - chemistry
RESONANCE
RUBREDOXIN
Rubredoxins - chemistry
Scattering, Radiation
SPECTROSCOPY
Spectrum Analysis - methods
Sulfides - chemistry
Vibration
X-ray spectra
X-Rays
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Metal−hydrogen bonding is important in chemistry and catalysis, but H atoms are often difficult to observe, especially in metalloproteins. In this work we show that Fe−H interactions can be probed by nuclear resonance vibrational spectroscopy at the 14.4 keV 57Fe nuclear resonance. An important advantage of this method, compared to Raman and IR spectroscopy, is the selectivity for modes that involve 57Fe motion. We present data on the FeS4 site in rubredoxin and the [FeH(D)6]2- ion. Prospects for studying more complex systems are discussed.
ISSN:0002-7863
1520-5126
DOI:10.1021/ja028767+