In Situ Characterizable High-Spin Nitrosyl–Iron Complexes with Controllable Reactivity in Multiphase Reaction Media

2021 ◽  
pp. 39-65
Author(s):  
Martin Oßberger ◽  
Peter Klüfers
Keyword(s):  
High Spin ◽  
Iron Complexes ◽  
Multiphase Reaction ◽  
Nitrosyl Iron Complexes ◽  
Reaction Media

Two decomposition mechanisms of nitrosyl iron complexes [Fe2(μ-SR)(NO)4]

2017 ◽  
Vol 66 (3) ◽  
pp. 432-438 ◽  
Author(s):  
O. V. Pokidova ◽  
N. A. Sanina ◽  
L. A. Syrtsova ◽  
B. L. Psikha ◽  
N. I. Shkondina ◽  
...  
Keyword(s):  
Iron Complexes ◽  
Decomposition Mechanisms ◽  
Nitrosyl Iron Complexes

scholarly journals Modification of Poly(4-methyl-2-pentyne) in the Supercritical Fluid Medium for Selective Membrane Separation of CO2 from Various Gas Mixtures

Polymers ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 2468
Author(s):  
Viktoriya Polevaya ◽  
Anton Vorobei ◽  
Andrey Gavrikov ◽  
Samira Matson ◽  
Olga Parenago ◽  
...  
Keyword(s):  
Membrane Separation ◽  
Gas Permeability ◽  
Gas Mixtures ◽  
Fluid Medium ◽  
Selective Membrane ◽  
Separation Of Co2 ◽  
Reaction Media ◽  
First Time ◽  
Principal Possibility

The modification of highly permeable films of brominated 1,2-disubstituted polyacetylene, poly(4-methyl-2-penthyne), via incorporation of in situ formed butylimidazolium bromide is reported for the first time. Principal possibility and efficiency of supercritical CO2 and CHF3 use as reaction media for the corresponding process, namely for quaternization of butylimidazole by brominated polymer are revealed. As a result, we prepared new membrane materials possessing promising properties such as stability toward organic solvents, good mechanical properties and significantly improved CO2-selectivity while maintaining gas permeability at high values. Comparative analysis of the results allowed us to determine content and conditions for the incorporation of butylimidazolium groups optimal for most efficient separation of CO2 from industrial gas mixtures. These results are of interest for the designing of new CO2 selective membranes.

Corrigendum to ‘Mitochondria localizing high-spin iron complexes of curcumin for photo-induced drug release’ [Inorg. Chim. Acta 483 (2018) 571–578]

2019 ◽  
Vol 493 ◽  
pp. 127
Author(s):  
Avishek Jana ◽  
Brijesh K. Verma ◽  
Aditya Garai ◽  
Paturu Kondaiah ◽  
Akhil R. Chakravarty
Keyword(s):  
Drug Release ◽  
High Spin ◽  
Iron Complexes ◽  
High Spin Iron

Reactions of sulfur-nitrosyl iron complexes of “g=2.03” family with hemoglobin (Hb): Kinetics of Hb–NO formation in aqueous solutions

Nitric Oxide ◽  
2007 ◽  
Vol 16 (2) ◽  
pp. 181-188 ◽  
Author(s):  
N.A. Sanina ◽  
L.A. Syrtsova ◽  
N.I. Shkondina ◽  
T.N. Rudneva ◽  
E.S. Malkova ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Iron Complexes ◽  
No Formation ◽  
Nitrosyl Iron Complexes ◽  
Kinetics Of

Iron complexes of pyridylimidazole derivatives

1977 ◽  
Vol 30 (4) ◽  
pp. 771 ◽  
Author(s):  
AT Baker ◽  
HA Goodwin
Keyword(s):  
Charge Transfer ◽  
Spectral Data ◽  
High Spin ◽  
Mössbauer Effect ◽  
Spin Transition ◽  
Iron Complexes ◽  
Mossbauer Effect ◽  
Effect Data ◽  
Electronic Spectral Data

Complexes of iron(II) with 2-(2-pyridyl)benzimidazole (pbi) and 2-(6- methyl-2-pyridyl)benzimidazole (mpbi) have been characterized. [Fe(pbi)3] [BF4]2 undergoes a temperature-induced spin transition the course of which is determined by the extent of hydration. [Fe(mpbi)3] [ClO4]2 is high-spin and the differences in the properties of the two complexes are correlated with electronic spectral data. [Fe(pbi)2(CN)2] is low-spin. Iron(III) complexes of deprotonated pbi and 2-(2- pyridyl)imidazole (pyim), [Fe(pbi-H)3] and [Fe(pyim-H)3], result when the cationic iron(II) complexes are treated with base. Magnetic and Mossbauer effect data show that these complexes, which display strong π → t2 charge-transfer absorption, are low-spin.

Genetic Signal Transduction by Nitrosyl-Iron Complexes in Escherichia coli

2004 ◽  
Vol 69 (8) ◽  
pp. 883-889 ◽  
Author(s):  
S. V. Vasilieva ◽  
E. Yu. Moshkovskaya ◽  
N. A. Sanina ◽  
S. M. Aldoshin ◽  
A. F. Vanin
Keyword(s):  
Escherichia Coli ◽  
Signal Transduction ◽  
Iron Complexes ◽  
Genetic Signal ◽  
Nitrosyl Iron Complexes

Quantum entanglement in nitrosyl iron complexes

2008 ◽  
Vol 107 (5) ◽  
pp. 804-811 ◽  
Author(s):  
S. M. Aldoshin ◽  
E. B. Feldman ◽  
M. A. Yurishchev
Keyword(s):  
Quantum Entanglement ◽  
Iron Complexes ◽  
Nitrosyl Iron Complexes

scholarly journals The cytochromes of anaerobically grown Escherichia coli. An electron-paramagnetic-resonance study of the cytochrome bd complex in situ

1989 ◽  
Vol 261 (2) ◽  
pp. 437-443 ◽  
Author(s):  
R A Rothery ◽  
W J Ingledew
Keyword(s):  
Escherichia Coli ◽  
High Spin ◽  
Binding Sites ◽  
Electron Paramagnetic Resonance Study ◽  
Paramagnetic Resonance ◽  
Cytochrome Bd ◽  
Ligand Binding Sites ◽  
Electron Paramagnetic ◽  
Spin Species

The e.p.r. signals attributable to a cytochrome bd-type ubiquinol: O2 oxidoreductase (cytochrome b-558-b-595-d) were studied in a cytoplasmic membrane preparation of Escherichia coli that had been grown on glycerol with fumarate as respiratory-chain oxidant. Two major high-spin ferric haem signals were resolved on the basis of their potentiometric behaviour: a rhombic high-spin species (gx = 6.25, gy = 5.54) was assigned to haem b-595, and an axial high-spin (gx = 5.97, gy = 5.96) species was assigned to the haem d. These signals titrated with Em.7 values of 154 and 261 mV respectively, corresponding closely to optically determined values for haem b-595 and haem d. At high potentials (greater than 300 mV) the rhombic species attributable to haem b-595 underwent a partial transition to a second rhombic species with g-values of 6.24 (gx) and 5.67 (gy). The high-spin ferric haem spectra were affected by O2, CO, cyanide and pH. A low-spin ferric haem signal was observed at g = 3.3 (gz), which titrated with an Em.7 of 226 mV, and this was assigned to haem b-558. The data support a model for cytochrome bd with two ligand-binding sites, a single haem d and a single haem b-595.

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