scholarly journals Dph3 Enables Aerobic Diphthamide Biosynthesis by Donating One Iron Atom to Transform a [3Fe–4S] to a [4Fe–4S] Cluster in Dph1–Dph2

2021 ◽  
Author(s):  
Yugang Zhang ◽  
Dan Su ◽  
Boris Dzikovski ◽  
Sean H. Majer ◽  
Rachael Coleman ◽  
...  
Keyword(s):  
Iron Atom

Single iron atom catalysis: An environmental perspective

Nano Today ◽  
2021 ◽  
Vol 38 ◽  
pp. 101117
Author(s):  
Ruofan Li ◽  
Lan Ling ◽  
Wei-xian Zhang
Keyword(s):  
Iron Atom

The synthesis of a novel trimetallic complex containing three redox centres and an assessment of inductive effect transmission through an iron atom

1986 ◽  
Vol 307 (2) ◽  
pp. C19-C22 ◽  
Author(s):  
Paul D. Beer ◽  
Stephen M. Charsley ◽  
Christopher J. Jones ◽  
Jon A. McCleverty
Keyword(s):  
Iron Atom ◽  
Inductive Effect

scholarly journals EPR Spectroscopy Study of the Radical Cation Cluster (η⁵-C₅H₅)(CO)₅ReFePt(μ₃-C=CHPh)(η²-Ph₂P(CH₂)₂PPh₂)

2019 ◽  
pp. 573-579
Author(s):  
Nikolay G. Maksimov ◽  
Victor V. Verpekin ◽  
Dmitry V. Zimonin ◽  
Galina V. Burmakina ◽  
Oleg S. Chudin ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Low Temperature ◽  
Radical Cation ◽  
Unpaired Electron ◽  
Iron Atom ◽  
Epr Spectroscopy ◽  
Binuclear Complex ◽  
Chemical Oxidation ◽  
Spectroscopy Study ◽  
Model Spectrum

The chemical oxidation of the cluster CpReFePt(μ3-C=CHPh)(CO)5(dppe) (Cp = η5-C5H5, dppe = η2- Ph2P(CH2)2PPh2) resulted in a radical cation [CpReFePt(μ3-C=CHPh)(CO)5(dppe)]+• that is sufficiently stable only at low temperature. An electronic structure of the radical cation was studied by EPR and following parameters were obtained by comparison of the experimental and model spectrum: gx = 2.070 gy = 2.0295 gz = 1.997; Ax(31P) = 17 Ay(31P) = 49 Az(31P) = 35 (Gs);Ax(195Pt) = 62 Ay(195Pt) = 45 Az(195Pt) = 105 (Gs). An unpaired electron is seen to be mainly concentrated on the iron atom (85-90%) and partially on the platinum atom (10-15%). Further transformation of the radical cation led to the formation of the binuclear complex Cp(CO)2RePt(μ-C=CHPh)(dppe) and the Fe-carbonyl fragment

scholarly journals Study of the iron atom clustering in mechanically alloyed Al-rich Fe-Al mixture

2014 ◽  
Vol 54 (3) ◽  
Author(s):  
V. Bėčytė ◽  
K. Mažeika ◽  
R. Juškėnas
Keyword(s):  
Iron Atom ◽  
Mechanically Alloyed

A “Giant Resonance” in Iron: Atom-Clusters-Crystal

1992 ◽  
pp. 963-967
Author(s):  
L. I. Kurkina ◽  
O. V. Farberovich ◽  
V. S. Stepanyuk ◽  
A. A. Katsnelson ◽  
A. Szasz
Keyword(s):  
Iron Atom ◽  
Giant Resonance ◽  
Atom Clusters

scholarly journals Axial Coordination of Phosphine or Phosphite to Iron(III) Chlorophyll a

1995 ◽  
Vol 50 (8) ◽  
pp. 1222-1228 ◽  
Author(s):  
Hidenari Inoue ◽  
Hiromi Akahori ◽  
Yuri Ohno ◽  
Katsuo Nakazawa ◽  
Yoshimune Nonomura ◽  
...  
Keyword(s):  
Chlorophyll A ◽  
Iron Atom ◽  
Free Ligand ◽  
Electronic Configuration ◽  
Photoelectron Spectra ◽  
Field Range ◽  
Nmr Spectrum ◽  
X Ray ◽  
Axial Coordination ◽  
H Nmr

The adduct formation of iron(III) chlorophyll a with phosphines or phosphites has been studied by spectroscopic methods. The red-shift in the Soret and Q bands caused by the axial coordination of phosphine or phosphite to iron(III) chlorophyll a is an evidence for the autoreduction of the central iron(III) ion. The 31P{1H} NMR spectrum of bis-adducts measured in the presence of excess phosphine or phosphite ligands gave a single peak in the down field range compared to that of the corresponding free ligand. The ESR and X-ray photoelectron spectra have revealed that the central iron atom of the bis-adduct of iron chlorophyll a with phosphines or phosphites is divalent and in the low-spin state. The axial coordination of phosphine or phosphite influences the electronic configuration of the central iron atom and the macrocyclic chlorine ligand to induce the autoreduction of the central iron(III) ion.

The Experiences of an Iron Atom—II

1918 ◽  
Vol 85 (2193supp) ◽  
pp. 30-32
Author(s):  
Charles R. Sturdevant
Keyword(s):  
Iron Atom
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