Axial Ligand Substituted Nonheme FeIVO Complexes: Observation of Near-UV LMCT Bands and FeO Raman Vibrations
- 20 August 2005
- journal article
- research article
- Published by American Chemical Society (ACS) in Journal of the American Chemical Society
- Vol. 127 (36), 12494-12495
- https://doi.org/10.1021/ja0540573
Abstract
Axial ligand substitution of a mononuclear nonheme oxoiron(IV) complex, [FeIV(O)(TMC)(NCCH3)]2+ (1) (TMC = 1,4,8,11-tetramethyl-1,4,8,11-tetraazacyclotetradecane), leads to the formation of new FeIVO species with relatively intense electronic absorption features in the near-UV region. The presence of these near-UV features allowed us to make the first observation of FeO vibrations of S = 1 mononuclear nonheme oxoiron(IV) complexes by resonance Raman spectroscopy. We have also demonstrated that the reactivity of nonheme oxoiron(IV) intermediates is markedly influenced by the axial ligands.Keywords
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