Search Results - "Yan, James J."
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K- and L-edge X-ray absorption spectroscopy (XAS) and resonant inelastic X-ray scattering (RIXS) determination of differential orbital covalency (DOC) of transition metal sites
Published in Coordination chemistry reviews (15-08-2017)“…•Directly probe metal oxidation state, geometry and coordination number.•Quantify differential orbital covalency.•Spectroscopic access to highly-covalent…”
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L‑Edge X‑ray Absorption Spectroscopic Investigation of {FeNO}6: Delocalization vs Antiferromagnetic Coupling
Published in Journal of the American Chemical Society (25-01-2017)“…NO is a classic non-innocent ligand, and iron nitrosyls can have different electronic structure descriptions depending on their spin state and coordination…”
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3
Oxidation of Naphthalene with a Manganese(IV) Bis(hydroxo) Complex in the Presence of Acid
Published in Angewandte Chemie (International ed.) (25-06-2018)“…Naphthalene oxidation with metal–oxygen intermediates is a difficult reaction in environmental and biological chemistry. Herein, we report that a MnIV…”
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4
A Mononuclear Nonheme Iron(V)-Imido Complex
Published in Journal of the American Chemical Society (05-07-2017)“…Mononuclear nonheme iron(V)-oxo complexes have been reported previously. Herein, we report the first example of a mononuclear nonheme iron(V)-imido complex…”
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5
Structural characterization of a non-heme iron active site in zeolites that hydroxylates methane
Published in Proceedings of the National Academy of Sciences - PNAS (01-05-2018)“…Iron-containing zeolites exhibit unprecedented reactivity in the low-temperature hydroxylation of methane to form methanol. Reactivity occurs at a mononuclear…”
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6
Resonant inelastic X-ray scattering determination of the electronic structure of oxyhemoglobin and its model complex
Published in Proceedings of the National Academy of Sciences - PNAS (19-02-2019)“…Hemoglobin and myoglobin are oxygen-binding proteins with S = 0 heme {FeO₂}⁸ active sites. The electronic structure of these sites has been the subject of much…”
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7
Effect of 3d/4p Mixing on 1s2p Resonant Inelastic X‑ray Scattering: Electronic Structure of Oxo-Bridged Iron Dimers
Published in Journal of the American Chemical Society (31-03-2021)“…1s2p resonant inelastic X-ray scattering (1s2p RIXS) has proven successful in the determination of the differential orbital covalency (DOC, the amount of metal…”
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8
Evaluation of a concerted vs. sequential oxygen activation mechanism in α-ketoglutarate–dependent nonheme ferrous enzymes
Published in Proceedings of the National Academy of Sciences - PNAS (10-03-2020)“…Determining the requirements for efficient oxygen (O₂) activation is key to understanding how enzymes maintain efficacy and mitigate unproductive, often…”
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Resonant Inelastic X‑ray Scattering on Ferrous and Ferric Bis-imidazole Porphyrin and Cytochrome c: Nature and Role of the Axial Methionine–Fe Bond
Published in Journal of the American Chemical Society (31-12-2014)“…Axial Cu–S(Met) bonds in electron transfer (ET) active sites are generally found to lower their reduction potentials. An axial S(Met) bond is also present in…”
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10
Mechanism of selective benzene hydroxylation catalyzed by iron-containing zeolites
Published in Proceedings of the National Academy of Sciences - PNAS (27-11-2018)“…A direct, catalytic conversion of benzene to phenol would have wide-reaching economic impacts. Fe zeolites exhibit a remarkable combination of high activity…”
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11
A mononuclear nonheme {FeNO} 6 complex: synthesis and structural and spectroscopic characterization
Published in Chemical science (Cambridge) (14-09-2018)“…While the synthesis and characterization of {FeNO} complexes have been well documented in heme and nonheme iron models, {FeNO} complexes have been less clearly…”
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12
Oxidation of Naphthalene with a Manganese(IV) Bis(hydroxo) Complex in the Presence of Acid
Published in Angewandte Chemie (25-06-2018)“…Naphthalene oxidation with metal–oxygen intermediates is a difficult reaction in environmental and biological chemistry. Herein, we report that a MnIV…”
Get full text
Journal Article -
13
Effect of 3d/4p Mixing on 1s2p Resonant Inelastic X-ray Scattering: Electronic Structure of Oxo-Bridged Iron Dimers
Published in Journal of the American Chemical Society (17-03-2021)“…1s2p resonant inelastic X-ray scattering (1s2p RIXS) has proven successful in the determination of the differential orbital covalency (DOC, the amount of metal…”
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Journal Article -
14
Naphthalene Oxidation of a Manganese(IV)-Bis(Hydroxo) Complex in the Presence of Acid
Published in Angewandte Chemie International Edition (22-05-2018)“…Naphthalene oxidation by metal-oxygen intermediates is one of difficult reactions in environmental and biological chemistry. Herein, we report that a Mn IV…”
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Journal Article -
15
L-Edge X-ray Absorption Spectroscopic Investigation of {FeNO}6: Delocalization vs Antiferromagnetic Coupling
Published in Journal of the American Chemical Society (22-12-2016)“…NO is a classic non-innocent ligand, and iron nitrosyls can have different electronic structure descriptions depending on their spin state and coordination…”
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Journal Article -
16
Mechanism of selective benzene hydroxylation catalyzed by iron-containing zeolites
Published in Proceedings of the National Academy of Sciences - PNAS (14-11-2018)“…A direct, catalytic conversion of benzene to phenol would have wide-reaching economic impacts. Fe zeolites exhibit a remarkable combination of high activity…”
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Journal Article -
17
A mononuclear nonheme {FeNO}6 complex: synthesis and structural and spectroscopic characterizationElectronic supplementary information (ESI) available: Tables S1-S6 for crystallographic data, Mössbauer parameters, XAS data and computational geometric parameters and Fig. S1-S11. CCDC 1574430, 1574431. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c8sc01962b
Published 29-08-2018“…While the synthesis and characterization of {FeNO} 7,8,9 complexes have been well documented in heme and nonheme iron models, {FeNO} 6 complexes have been less…”
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A mononuclear nonheme {FeNO}6 complex: synthesis and structural and spectroscopic characterization† †Electronic supplementary information (ESI) available: Tables S1–S6 for crystallographic data, Mössbauer parameters, XAS data and computational geometric parameters and Fig. S1–S11. CCDC 1574430, 1574431. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c8sc01962b
Published in Chemical science (Cambridge) (20-07-2018)“…X-ray structures of nonheme {FeNO} 6 and iron( iii )-nitrito complexes bearing a tetraamido macrocyclic ligand are reported along with three different…”
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AMPLIFIED PROINFLAMMATORY CYTOKINE EXPRESSION AND TOXICITY IN MICE COEXPOSED TO LIPOPOLYSACCHARIDE AND THE TRICHOTHECENE VOMITOXIN (DEOXYNIVALENOL)
Published in Journal of Toxicology and Environmental Health, Part A (28-05-1999)“…A single oral exposure to the trichothecene vomitoxin (VT) has been previously shown in the mouse to increase splenic mRNA levels for several cytokines in as…”
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