Characterization of a paramagnetic mononuclear nonheme iron-superoxo complex

Chien Wei Chiang; Scott T. Kleespies; Heather D. Stout; Katlyn K. Meier; Po Yi Li; Emile L. Bominaar; Lawrence Que; Eckard Münck; Way Zen Lee

doi:10.1021/ja504410s

Characterization of a paramagnetic mononuclear nonheme iron-superoxo complex

Chien Wei Chiang, Scott T. Kleespies, Heather D. Stout, Katlyn K. Meier, Po Yi Li, Emile L. Bominaar^*, Lawrence Que, Eckard Münck, Way Zen Lee

^*此作品的通信作者

化學系

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

92 引文斯高帕斯（Scopus）

摘要

O₂ bubbling into a THF solution of Fe^II(BDPP) (1) at -80 °C generates a reversible bright yellow adduct 2. Characterization by resonance Raman and Mössbauer spectroscopy provides complementary insights into the nature of 2. The former shows a resonance-enhanced vibration at 1125 cm^-1, which can be assigned to the ν(O-O) of a bound superoxide, while the latter reveals the presence of a high-spin iron(III) center that is exchange-coupled to the superoxo ligand, like the Fe^III-O ₂^- pair found for the O₂ adduct of 4-nitrocatechol-bound homoprotocatechuate 2,3-dioxygenase. Lastly, 2 oxidizes dihydroanthracene to anthracene, supporting the notion that Fe ^III-O₂^- species can carry out H atom abstraction from a C-H bond to initiate the 4-electron oxidation of substrates proposed for some nonheme iron enzymes.

原文	英語
頁（從 - 到）	10846-10849
頁數	4
期刊	Journal of the American Chemical Society
卷	136
發行號	31
DOIs	https://doi.org/10.1021/ja504410s
出版狀態	已發佈 - 2014 8月 6

ASJC Scopus subject areas

催化
一般化學
生物化學
膠體和表面化學

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10.1021/ja504410s

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CCDC 1020020: Experimental Crystal Structure Determination
Chiang, C. (Creator), Kleespies, S. T. (Creator), Stout, H. D. (Creator), Meier, K. K. (Creator), Li, P. (Creator), Bominaar, E. L. (Creator), Que, L. (Contributor), Münck, E. (Contributor) & Lee, W. (Creator), Unknown Publisher, 2014
DOI: 10.5517/cc137dwm, http://www.ccdc.cam.ac.uk/services/structure_request?id=doi:10.5517/cc137dwm&sid=DataCite
資料集: Dataset

引用此

@article{83c8547834594eda8669ffc7aa311fd0,

title = "Characterization of a paramagnetic mononuclear nonheme iron-superoxo complex",

abstract = "O2 bubbling into a THF solution of FeII(BDPP) (1) at -80 °C generates a reversible bright yellow adduct 2. Characterization by resonance Raman and M{\"o}ssbauer spectroscopy provides complementary insights into the nature of 2. The former shows a resonance-enhanced vibration at 1125 cm-1, which can be assigned to the ν(O-O) of a bound superoxide, while the latter reveals the presence of a high-spin iron(III) center that is exchange-coupled to the superoxo ligand, like the FeIII-O 2- pair found for the O2 adduct of 4-nitrocatechol-bound homoprotocatechuate 2,3-dioxygenase. Lastly, 2 oxidizes dihydroanthracene to anthracene, supporting the notion that Fe III-O2- species can carry out H atom abstraction from a C-H bond to initiate the 4-electron oxidation of substrates proposed for some nonheme iron enzymes.",

author = "Chiang, {Chien Wei} and Kleespies, {Scott T.} and Stout, {Heather D.} and Meier, {Katlyn K.} and Li, {Po Yi} and Bominaar, {Emile L.} and Lawrence Que and Eckard M{\"u}nck and Lee, {Way Zen}",

year = "2014",

month = aug,

day = "6",

doi = "10.1021/ja504410s",

language = "English",

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journal = "Journal of the American Chemical Society",

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publisher = "American Chemical Society",

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T1 - Characterization of a paramagnetic mononuclear nonheme iron-superoxo complex

AU - Chiang, Chien Wei

AU - Kleespies, Scott T.

AU - Stout, Heather D.

AU - Meier, Katlyn K.

AU - Li, Po Yi

AU - Bominaar, Emile L.

AU - Que, Lawrence

AU - Münck, Eckard

AU - Lee, Way Zen

PY - 2014/8/6

Y1 - 2014/8/6

N2 - O2 bubbling into a THF solution of FeII(BDPP) (1) at -80 °C generates a reversible bright yellow adduct 2. Characterization by resonance Raman and Mössbauer spectroscopy provides complementary insights into the nature of 2. The former shows a resonance-enhanced vibration at 1125 cm-1, which can be assigned to the ν(O-O) of a bound superoxide, while the latter reveals the presence of a high-spin iron(III) center that is exchange-coupled to the superoxo ligand, like the FeIII-O 2- pair found for the O2 adduct of 4-nitrocatechol-bound homoprotocatechuate 2,3-dioxygenase. Lastly, 2 oxidizes dihydroanthracene to anthracene, supporting the notion that Fe III-O2- species can carry out H atom abstraction from a C-H bond to initiate the 4-electron oxidation of substrates proposed for some nonheme iron enzymes.

AB - O2 bubbling into a THF solution of FeII(BDPP) (1) at -80 °C generates a reversible bright yellow adduct 2. Characterization by resonance Raman and Mössbauer spectroscopy provides complementary insights into the nature of 2. The former shows a resonance-enhanced vibration at 1125 cm-1, which can be assigned to the ν(O-O) of a bound superoxide, while the latter reveals the presence of a high-spin iron(III) center that is exchange-coupled to the superoxo ligand, like the FeIII-O 2- pair found for the O2 adduct of 4-nitrocatechol-bound homoprotocatechuate 2,3-dioxygenase. Lastly, 2 oxidizes dihydroanthracene to anthracene, supporting the notion that Fe III-O2- species can carry out H atom abstraction from a C-H bond to initiate the 4-electron oxidation of substrates proposed for some nonheme iron enzymes.

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JO - Journal of the American Chemical Society

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Characterization of a paramagnetic mononuclear nonheme iron-superoxo complex

摘要

ASJC Scopus subject areas

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其它文件與鏈接

指紋

資料集

CCDC 1020020: Experimental Crystal Structure Determination

引用此