Electron nuclear double resonance (ENDOR) of transition metal complexes with organic ligands is considered from an experimental and theoretical point of view. In the experimental sections, instrumentations used in conventional ENDOR and multiple resonance spectroscopy and in some new double resonance methods are discussed. Particular emphasis is placed on various experimental techniques which supplement the conventional ENDOR experiment. The different methods are illustrated by a number of applications on transition metal complexes1. In the theoretical sections, the analysis of ENDOR spectra of complex spin systems is described including second order effects, transitions probabilities and determination of signs of the magnetic parameters. Some of the approaches used in ENDOR to interpret ligand hyperfine and quadrupole data are outlined.
Finally, a review of the ENDOR literature on transition metal complexes with organic ligands is presented...