[FeFe]-hydrogenase H-cluster mimics mediated by ferrocenyl hetaryl thioketone derivatives

Basma, Ibrahim; Abul-Futouh, Hassan; Abaalkhail, Sara J.; Liebing, Phil; Weigand, Wolfgang

doi:10.1016/j.molstruc.2023.136630

Cited by 5 publications

(3 citation statements)

References 61 publications

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“…5 and S37,† the reduction values for 2 , [ 3 ] Cl and [ 6 ] Cl begin to decrease at slow scan rates, then exhibit linearity at fast scan rates. Based on the reported analogous sulfur complexes, 42,47–50 it is suggested that the reduction wave of complexes 2 , [ 3 ] Cl , and [ 6 ] Cl arises from a one-electron reduction process. Therefore, the reductions for [ 3 ] Cl and [ 6 ] Cl and the first reduction of 2 could be assigned to Fe II Fe II to Fe II Fe I species.…”

Section: Resultsmentioning

confidence: 99%

Facile access to tetra-substituted Fe^IIFe^II biomimetics for the oxidized state active site of [FeFe]-hydrogenases

Gao,

Bai,

Wang

et al. 2024

Inorg. Chem. Front.

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Section: Resultsmentioning

confidence: 99%

Facile access to tetra-substituted Fe^IIFe^II biomimetics for the oxidized state active site of [FeFe]-hydrogenases

Gao,

Bai,

Wang

et al. 2024

Inorg. Chem. Front.

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“…The cellular morphology was observed using an inverted microscope (CKX41; Olympus, Japan) equipped with the digital microscopy camera to capture the images representing the morphological changes compared to control cells. The cytopathic effects (morphological alterations) were microscopically observed at 100x [6].…”

Section: Mtt Assaymentioning

confidence: 99%

Eco-Friendly Green Biosynthesis of Silver Nanoparticles (Or-AgNPs) Using Orange Peel (<i>Citrus sinensis</i>) Waste and Evaluation of their Antibacterial and Cytotoxic Activities

Mohamed

2022

NHC

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Greener Nanotechnology research depends on the utilization of the reductive potency of a common byproduct of food and fruit processing industry which represent a cheap and reliable source of green reducing agents to be used in bio-nanosynthesis. One potential approach is based on silver bio-synthesis (AgNPs) using biological waste products. Recently, the production of bio-nanoparticles especially AgNPs has received enormous importance due to its good and potential physicochemical characteristics and the possibility of applications .The present work aimed to synthesis silver nanoparticles (AgNPs) using biological orange waste peels products (Citrus Sinensis) to evaluate its characterization, antimicrobial activity and cytotoxicity. The green synthesized silver nanoparticles were characterized by UV-visible spectroscopy and Scanning electron microscopy (SEM). Disk diffusion method was used for the study of antimicrobial activity of the bio-synthesized silver nanoparticles against the different bacterial and fungal strains. Characterization performed by Scanning Electron Microscope and UV visible spectrophotometer where showed the formation of spherical, and few agglomerated AgNPs forms as measured by UV–visible spectrophotometer in the range of 350-550 nm. Antimicrobial activities where showed positive activity against most of the tested human pathogenic bacteria and fungi with varying degrees and the cytotoxicity which performed against African Green Monkey Kidney cell lines (Vero) where CC50 for AgNO3 and AgNPs were ( 76.5±6.27 μl/100μl ) and (9.87±0.90μl/100μl) respectively.

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“…Iron carbonyls have been receiving rising interest due to their versatile applications in various areas, such as chemical synthesis, pharmaceuticals, and biology. Being inspired by the fact that the metallic active sites of hydrogenases (typically, [NiFe]‐hydrogenase, [FeFe]‐hydrogenase, and [Fe]‐hydrogenase) possess metal carbonyls, a huge number of nickel and iron carbonyls have been explored in an attempt of finding non‐noble‐metal catalysts for hydrogen evolution reaction (HER) 1–10 . Particularly, iron carbonyls are also efficient promoters in many organic reactions, for example, hydrogenation, hydrogen‐borrowing reactions, hydroboration, hydrosilylation, hydrophosphination, carbonylation, alkylation, cyclization reactions with C‐H cleavage and C‐C coupling, activation of unsaturated‐carbon bonds, et al 11–15 In the past decades or so, iron carbonyls as carbon monoxide‐releasing molecules (CORMs), 6,16,17 have emerged in gaseous medicine as CO is not only an important gaseous signaling molecule but also is of therapeutic effects in anti‐inflammatory, anti‐proliferation, anti‐apoptosis, anti‐hypoxia, vasodilatation, and protections from ischemia–reperfusion.…”

Section: Introductionmentioning

confidence: 99%

The reaction of nonacarbonyldiiron with 8‐alkynyloxyquinolines: Alkynyl activation, cyclization via C‐N bond formation, and C‐H bond cleavage

Luo,

Yu,

Chu

et al. 2024

Applied Organom Chemis

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In this work, the reactions of nonacarbonyldiiron with 8‐alkynyloxyquinoline ligands (L1‐L3) and their resultant iron carbonyl complexes (1a, 1b, 2, and 3) are described. The complexes including the ligands were fully characterized by using a variety of spectroscopic techniques. The four complexes were also crystallographically determined. In the reactions, the quinoline N atom underwent cyclization to form a quinolinium skeleton while the C‐H bond of the quinoline at position 2 or the substituted methyl group was cleaved to form Fe‐C bond(s). Meanwhile, the alkynyl triple bond was reduced to a single bond (1a) or double bonds (1b, 2, and 3) to further coordinate the iron in σ‐bonds or η‐bonds. Particularly, pathways of hydrogenation (1a and 2) and/or dehydrogenation (1b and 3) were accompanied by the reactions. Moreover, the oxidation states of the iron centers in these complexes were identified through analyses of their bond formation, FTIR and NMR spectroscopic signals (1H NMR and DEPT‐135) in combination with their diamagnetic nature, that is, iron (0) for 2 and iron (I) for the rest of the diiron complexes.

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[FeFe]-hydrogenase H-cluster mimics mediated by ferrocenyl hetaryl thioketone derivatives

Cited by 5 publications

References 61 publications

Facile access to tetra-substituted Fe^IIFe^II biomimetics for the oxidized state active site of [FeFe]-hydrogenases

Facile access to tetra-substituted Fe^IIFe^II biomimetics for the oxidized state active site of [FeFe]-hydrogenases

Eco-Friendly Green Biosynthesis of Silver Nanoparticles (Or-AgNPs) Using Orange Peel (<i>Citrus sinensis</i>) Waste and Evaluation of their Antibacterial and Cytotoxic Activities

The reaction of nonacarbonyldiiron with 8‐alkynyloxyquinolines: Alkynyl activation, cyclization via C‐N bond formation, and C‐H bond cleavage

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[FeFe]-hydrogenase H-cluster mimics mediated by ferrocenyl hetaryl thioketone derivatives

Cited by 5 publications

References 61 publications

Facile access to tetra-substituted FeIIFeII biomimetics for the oxidized state active site of [FeFe]-hydrogenases

Facile access to tetra-substituted FeIIFeII biomimetics for the oxidized state active site of [FeFe]-hydrogenases

Eco-Friendly Green Biosynthesis of Silver Nanoparticles (Or-AgNPs) Using Orange Peel (<i>Citrus sinensis</i>) Waste and Evaluation of their Antibacterial and Cytotoxic Activities

The reaction of nonacarbonyldiiron with 8‐alkynyloxyquinolines: Alkynyl activation, cyclization via C‐N bond formation, and C‐H bond cleavage

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Product

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Facile access to tetra-substituted Fe^IIFe^II biomimetics for the oxidized state active site of [FeFe]-hydrogenases

Facile access to tetra-substituted Fe^IIFe^II biomimetics for the oxidized state active site of [FeFe]-hydrogenases