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[NiFe]氢化酶的(57)Fe标记模型的合成与振动光谱:镍-铁相互作用的首次直接观测

Synthesis and vibrational spectroscopy of (57)Fe-labeled models of [NiFe] hydrogenase: first direct observation of a nickel-iron interaction.

作者信息

Schilter David, Pelmenschikov Vladimir, Wang Hongxin, Meier Florian, Gee Leland B, Yoda Yoshitaka, Kaupp Martin, Rauchfuss Thomas B, Cramer Stephen P

机构信息

Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.

出版信息

Chem Commun (Camb). 2014 Nov 14;50(88):13469-72. doi: 10.1039/c4cc04572f.

DOI:10.1039/c4cc04572f
PMID:25237680
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4191989/
Abstract

A new route to iron carbonyls has enabled synthesis of (57)Fe-labeled [NiFe] hydrogenase mimic (OC)3(57)Fe(pdt)Ni(dppe). Its study by nuclear resonance vibrational spectroscopy revealed Ni-(57)Fe vibrations, as confirmed by calculations. The modes are absent for (OC)3(57)Fe(pdt)Ni(dppe), which lacks Ni-(57)Fe bonding, underscoring the utility of the analyses in identifying metal-metal interactions.

摘要

一种制备羰基铁的新方法使得合成(57)Fe标记的[NiFe]氢化酶模拟物(OC)3(57)Fe(pdt)Ni(dppe)成为可能。通过核共振振动光谱对其进行的研究揭示了Ni-(57)Fe振动,计算结果证实了这一点。对于缺乏Ni-(57)Fe键的[(OC)3(57)Fe(pdt)Ni(dppe)]+,这些振动模式不存在,这突出了该分析方法在识别金属-金属相互作用方面的实用性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4a56/4251067/111f4c86b46c/c4cc04572f-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4a56/4251067/16bd5faab098/c4cc04572f-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4a56/4251067/070dd58bc88d/c4cc04572f-s1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4a56/4251067/dc09817de64c/c4cc04572f-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4a56/4251067/533f201492e2/c4cc04572f-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4a56/4251067/111f4c86b46c/c4cc04572f-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4a56/4251067/16bd5faab098/c4cc04572f-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4a56/4251067/070dd58bc88d/c4cc04572f-s1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4a56/4251067/dc09817de64c/c4cc04572f-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4a56/4251067/533f201492e2/c4cc04572f-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4a56/4251067/111f4c86b46c/c4cc04572f-f4.jpg

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本文引用的文献

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[NiFe] hydrogenases: how close do structural and functional mimics approach the active site?
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Observation of the Fe-CN and Fe-CO vibrations in the active site of [NiFe] hydrogenase by nuclear resonance vibrational spectroscopy.核共振振动光谱观察 [NiFe]氢化酶活性中心的 Fe-CN 和 Fe-CO 振动。
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