High-frequency and -field electron paramagnetic resonance of transition metal ion (d block) coordination complexes
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Published:30 Nov 2012
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J. Telser, A. Ozarowski, and J. Krzystek, in Electron Paramagnetic Resonance, ed. B. C. Gilbert, D. M. Murphy, and V. Chechik, The Royal Society of Chemistry, 2012, vol. 23, pp. 209-263.
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High-frequency and -field electron paramagnetic resonance (HFEPR), in its current configuration (frequencies up to 1THz; fields up to 35T), has been applied to transition metal complexes for over twenty years, whilst early examples of this technique go back nearly fifty years. In this Report are described HFEPR (limited to frequencies above those generated by most commercial instruments) studies on paramagnetic transition metal ion molecular complexes. These coordination complexes are chiefly of the d block ions, and specifically 3d (first row transition metals), but selected examples of studies on 4d, 5d and 4f ions will also be discussed. The period from 2006 will primarily be covered with an emphasis on results reported within the last several years. The subject emphasis will be on mono- or dinuclear complexes; however, polynuclear systems will also be reviewed. Computational/theoretical studies that are closely related to experimental work will be described as well. Speculation as to new targets for application of HFEPR within this general area will be entertained throughout the Report.