Axial Ligand Substituted Nonheme FeIVO Complexes: Observation of Near-UV LMCT Bands and FeO Raman Vibrations
Journal of the American Chemical Society2005Vol. 127(36), pp. 12494–12495
Citations Over TimeTop 10% of 2005 papers
Chivukula V. Sastri, Mi Joo Park, Takehiro Ohta, Timothy A. Jackson, Audria Stubna, Mi Sook Seo, Jimin Lee, Jinheung Kim, Teizo Kitagawa, Eckard Münck, Lawrence Que, Wonwoo Nam
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 FeIV=O 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 Fe=O 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.
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