Standard Article

Nuclear Resonance Vibrational Spectroscopy (NRVS)

  1. Weiqiao Zeng1,2,
  2. Nathan J. Silvernail1,2,
  3. W. Robert Scheidt1,2,
  4. J. Timothy Sage1,2

Published Online: 15 MAR 2008

DOI: 10.1002/0470862106.ia321

Encyclopedia of Inorganic Chemistry

Encyclopedia of Inorganic Chemistry

How to Cite

Zeng, W., Silvernail, N. J., Scheidt, W. R. and Sage, J. T. 2008. Nuclear Resonance Vibrational Spectroscopy (NRVS). Encyclopedia of Inorganic Chemistry. .

Author Information

  1. 1

    Northeastern University, Boston, MA, USA

  2. 2

    University of Notre Dame, Notre Dame, IN, USA

Publication History

  1. Published Online: 15 MAR 2008

Abstract

Nuclear Resonance Vibrational Spectroscopy (NRVS) utilizes the simultaneous excitation of the Mössbauer nucleus and vibrational quanta. Vibrational features appear as sidebands on the recoilless resonance. NRVS reveals the complete vibrational spectrum of the probe nucleus with the resolution almost equal to that of Raman or infrared. Major advantages include selectivity to vibrations of the Mössbauer isotope with quantitative information on vibrational amplitudes, as well as frequencies. Single crystal measurements are selective for motion along the exciting X-ray beam. NRVS is equally applicable to all ligation and oxidation states. Questions that can be addressed include the strength of metal coordination, the energetic cost of probe displacement, discrimination of metal-ligand vibrations from cofactor or peptide vibrations, and the local vs. global character of active site vibrations.

Keywords:

  • vibrational spectroscopy;
  • vibrational dynamics;
  • iron modes;
  • nuclear resonance vibrational spectroscopy;
  • hemes;
  • heme proteins;
  • iron–histidine