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Updated: Mar 23, 2026

Protein Film Infrared Electrochemistry Demonstrated for Study of H2 Oxidation by a [NiFe] Hydrogenase
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Protein Film Infrared Electrochemistry Demonstrated for Study of H2 Oxidation by a [NiFe] Hydrogenase

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合成単位Fe窒素酵素:高回転,フリーズクエンチ (57) Feモースバウアーデータ,およびヒドリドの静止状態

Trevor J Del Castillo1, Niklas B Thompson1, Jonas C Peters1

  • 1Division of Chemistry and Chemical Engineering, California Institute of Technology (Caltech) , Pasadena, California 91125, United States.

Journal of the American Chemical Society
|March 31, 2016
PubMed
まとめ

研究者は窒素ガスからアンモニアを合成する 強力な鉄触媒を開発しました これらの触媒は,窒素固定メカニズムと合成酵素の設計に関する洞察を提供することで,収量と安定性の改善を示しています.

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Ferromagnetism01:31

Ferromagnetism

Materials like iron, nickel, and cobalt consist of magnetic domains, within which the magnetic dipoles are arranged parallel to each other. The magnetic dipoles are rigidly aligned in the same direction within a domain by quantum mechanical coupling among the atoms. This coupling is so strong that even thermal agitation at room temperature cannot break it. The result is that each domain has a net dipole moment. However, some materials have weaker coupling, and are ferromagnetic at lower...
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The spin state of an NMR-active nucleus can have a slight effect on its immediate electronic environment. This effect propagates through the intervening bonds and affects the electronic environments of NMR-active nuclei up to three bonds away; occasionally, even farther. This phenomenon is called spin–spin coupling or J-coupling. Coupling interactions are mutual and result in small changes in the absorption frequencies of both nuclei involved. While nuclei of the same element are involved...
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This lesson illustrates the role of deuterium substitution in simplifying the NMR spectrum of compounds comprising labile protons. One method employed is the use of deuterium. Amongst the three isotopes of hydrogen, deuterium (2H) has a nucleus composed of one proton and one neutron. When the D2O solvent is added to a pure dry ethanol solution, its labile proton is substituted with deuterium.
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