TY - JOUR
T1 - Spin state tuning of non-heme iron-catalyzed hydrocarbon oxidations
T2 - Participation of FeIII-OOH and FeV=O intermediates
AU - Chen, Kui
AU - Costas, Miquel
AU - Que, Lawrence
PY - 2002
Y1 - 2002
N2 - We have found a family of non-heme iron complexes [FeII(L)(CH3CN)2](L = tetradentate pyridine containing ligand) with cis labile sites that catalyze highly stereo-selective hydrocarbon oxidations using H2O2 as oxidant. The hydrocarbon oxidation reactivity patterns of this family of catalysts divide them into two subgroups: Category A catalysts which carry out highly stereoselective alkane hydroxylation, olefin epoxidation, and olefincis-dihydroxylationvia low-spin FeIII-OOH, FeV=O intermediates and category B catalysts which form high-spin FeIII-OOH intermediates and strongly favor olefin cis-dihydroxylation in (which both diol oxygen atoms derive from H2O2. 6-Methyl substituents on the ligands play an important role in tuning the spin states of the iron centers to afford a family of non-heme iron complexes that catalyze a remarkable array of hydrocarbon oxidation reactions.
AB - We have found a family of non-heme iron complexes [FeII(L)(CH3CN)2](L = tetradentate pyridine containing ligand) with cis labile sites that catalyze highly stereo-selective hydrocarbon oxidations using H2O2 as oxidant. The hydrocarbon oxidation reactivity patterns of this family of catalysts divide them into two subgroups: Category A catalysts which carry out highly stereoselective alkane hydroxylation, olefin epoxidation, and olefincis-dihydroxylationvia low-spin FeIII-OOH, FeV=O intermediates and category B catalysts which form high-spin FeIII-OOH intermediates and strongly favor olefin cis-dihydroxylation in (which both diol oxygen atoms derive from H2O2. 6-Methyl substituents on the ligands play an important role in tuning the spin states of the iron centers to afford a family of non-heme iron complexes that catalyze a remarkable array of hydrocarbon oxidation reactions.
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M3 - Article
AN - SCOPUS:0036026571
SN - 1470-479X
SP - 672
EP - 679
JO - Journal of the Chemical Society, Dalton Transactions
JF - Journal of the Chemical Society, Dalton Transactions
IS - 5
ER -