Standard Article

Stereochemical Nonrigidity of Organometallic Complexes

  1. John W. Faller

Published Online: 15 MAR 2006

DOI: 10.1002/0470862106.ia228

Encyclopedia of Inorganic Chemistry

Encyclopedia of Inorganic Chemistry

How to Cite

Faller, J. W. 2006. Stereochemical Nonrigidity of Organometallic Complexes. Encyclopedia of Inorganic Chemistry. .

Author Information

  1. Yale University, New Haven, CT, USA

Publication History

  1. Published Online: 15 MAR 2006


Compounds that undergo intramolecular rearrangements at rates that affect the NMR line shapes in generally accessible temperature ranges are described as stereochemically nonrigid. Analysis of 1D and 2D NMR spectra as a function of temperature often allow the rates, as well as the mechanisms of interconversion of conformers or isomers, to be determined. Examples were selected to illustrate the importance of stereochemical nonrigidity in reactivity and the potential for affecting stereochemistry in the products of reactions.


  • fluxional;
  • stereochemically nonrigid;
  • dynamic NMR;
  • stereodynamics;
  • DNMR;
  • EXSY;
  • NMR;
  • atropisomers;
  • nonrigid stereochemistry;
  • conformation interconversion