Synthesis and characterization of a novel high valent dinuclear Fe(III, III) complex of triphenolate ligand [N4O3]3- as a model for methane monooxygenase

Hong Yang Li; Feng Shi; Xiao Jun Peng; Li Cheng Sun; Li Zhu Zhang; Xiao Qiang Chen

Synthesis and characterization of a novel high valent dinuclear Fe(III, III) complex of triphenolate ligand [N₄O₃]^3- as a model for methane monooxygenase

Hong Yang Li, Feng Shi, Xiao Jun Peng, Li Cheng Sun, Li Zhu Zhang, Xiao Qiang Chen

Dalian University of Technology

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

A new high valent [Fe₂(III/III)L(μ-OAc)₂] · PF₆ complex was prepared, where L was 2,6-Bis(((2-hydroxy-5-ten-butyl-benzyl)(pyridyl-2-methyl)amino) methyl)-4-methylphenol, which contained another two phenolate and tert-butyl functional groups compared to [Fe₂(II,III)(bpmp)(μ-OAc)₂] · BPh₄)₂. In this complex, two pseudo-octahedrally coordinated Fe ions were bridged by a phenolate group and two bidentate acetate ligands. The stronger and more coordinate bonds between anionic phenolate groups and Fe ions in higher oxidation state prevented the dissociation of central ions. The additional tert-butyl groups improved the solubility and electronic cloud density of the ligand. These improvements narrowed the disparity between the new model and the MMOH. And IR, ESI-MS, NMR (gCOSY, gHMBC, gHSQC) and electrochemistry characterized the new ligand or complex.

Original language	English
Pages (from-to)	40-42+44
Journal	Xiandai Huagong/Modern Chemical Industry
Volume	24
Issue number	1
State	Published - Jan 2004
Externally published	Yes

Keywords

Dinuclear iron complex
Methane monooxygenase (MMO)
Phenolate ligand

Cite this

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title = "Synthesis and characterization of a novel high valent dinuclear Fe(III, III) complex of triphenolate ligand [N4O3]3- as a model for methane monooxygenase",

abstract = "A new high valent [Fe2(III/III)L(μ-OAc)2] · PF6 complex was prepared, where L was 2,6-Bis(((2-hydroxy-5-ten-butyl-benzyl)(pyridyl-2-methyl)amino) methyl)-4-methylphenol, which contained another two phenolate and tert-butyl functional groups compared to [Fe2(II,III)(bpmp)(μ-OAc)2] · BPh4)2. In this complex, two pseudo-octahedrally coordinated Fe ions were bridged by a phenolate group and two bidentate acetate ligands. The stronger and more coordinate bonds between anionic phenolate groups and Fe ions in higher oxidation state prevented the dissociation of central ions. The additional tert-butyl groups improved the solubility and electronic cloud density of the ligand. These improvements narrowed the disparity between the new model and the MMOH. And IR, ESI-MS, NMR (gCOSY, gHMBC, gHSQC) and electrochemistry characterized the new ligand or complex.",

keywords = "Dinuclear iron complex, Methane monooxygenase (MMO), Phenolate ligand",

author = "Li, {Hong Yang} and Feng Shi and Peng, {Xiao Jun} and Sun, {Li Cheng} and Zhang, {Li Zhu} and Chen, {Xiao Qiang}",

year = "2004",

month = jan,

language = "英语",

volume = "24",

pages = "40--42+44",

journal = "Xiandai Huagong/Modern Chemical Industry",

issn = "0253-4320",

publisher = "China National Chemical Information Center",

number = "1",

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T1 - Synthesis and characterization of a novel high valent dinuclear Fe(III, III) complex of triphenolate ligand [N4O3]3- as a model for methane monooxygenase

AU - Li, Hong Yang

AU - Shi, Feng

AU - Peng, Xiao Jun

AU - Sun, Li Cheng

AU - Zhang, Li Zhu

AU - Chen, Xiao Qiang

PY - 2004/1

Y1 - 2004/1

N2 - A new high valent [Fe2(III/III)L(μ-OAc)2] · PF6 complex was prepared, where L was 2,6-Bis(((2-hydroxy-5-ten-butyl-benzyl)(pyridyl-2-methyl)amino) methyl)-4-methylphenol, which contained another two phenolate and tert-butyl functional groups compared to [Fe2(II,III)(bpmp)(μ-OAc)2] · BPh4)2. In this complex, two pseudo-octahedrally coordinated Fe ions were bridged by a phenolate group and two bidentate acetate ligands. The stronger and more coordinate bonds between anionic phenolate groups and Fe ions in higher oxidation state prevented the dissociation of central ions. The additional tert-butyl groups improved the solubility and electronic cloud density of the ligand. These improvements narrowed the disparity between the new model and the MMOH. And IR, ESI-MS, NMR (gCOSY, gHMBC, gHSQC) and electrochemistry characterized the new ligand or complex.

AB - A new high valent [Fe2(III/III)L(μ-OAc)2] · PF6 complex was prepared, where L was 2,6-Bis(((2-hydroxy-5-ten-butyl-benzyl)(pyridyl-2-methyl)amino) methyl)-4-methylphenol, which contained another two phenolate and tert-butyl functional groups compared to [Fe2(II,III)(bpmp)(μ-OAc)2] · BPh4)2. In this complex, two pseudo-octahedrally coordinated Fe ions were bridged by a phenolate group and two bidentate acetate ligands. The stronger and more coordinate bonds between anionic phenolate groups and Fe ions in higher oxidation state prevented the dissociation of central ions. The additional tert-butyl groups improved the solubility and electronic cloud density of the ligand. These improvements narrowed the disparity between the new model and the MMOH. And IR, ESI-MS, NMR (gCOSY, gHMBC, gHSQC) and electrochemistry characterized the new ligand or complex.

KW - Dinuclear iron complex

KW - Methane monooxygenase (MMO)

KW - Phenolate ligand

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M3 - 文章

AN - SCOPUS:2942756101

SN - 0253-4320

VL - 24

SP - 40-42+44

JO - Xiandai Huagong/Modern Chemical Industry

JF - Xiandai Huagong/Modern Chemical Industry

IS - 1

ER -

Synthesis and characterization of a novel high valent dinuclear Fe(III, III) complex of triphenolate ligand [N₄O₃]^3- as a model for methane monooxygenase

Abstract

Keywords

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