Interplay between iron complexes, nitric oxide and sulfur ligands: Structure, (photo)reactivity and biological importance

Graphene‐Supported Hemin as a Highly Active Biomimetic Oxidation Catalyst

“…The cation-π interaction between the iron centers and graphene mimics the role of cysteine or histidine in enzymes, which has been proven as axial ligand to the hemin center from Glu mutation study. [18] Enzymatic studies [19] also showed that axial ligand can serve multiple functions to enhance the catalytic characteristics, such as enhancement of the rate of O-O cleavage, promoting heterolytic splitting rather than homolytic O-O splitting [20] and stabilization of the ferryl (FeO 4+ ) moiety due to resonance and enhanced electrophilicity, which is crucial for catalytic activity. [21] …”

Nitrosyl iron complexes with enhanced NO donating ability: synthesis, structure and properties of a new type of salt with the DNIC cations [Fe(SC(NH2)2)2(NO)2]+

“…[25][26][27] These complexes are models of the active sites of nitrosyl non-heme iron-sulfur proteins existing in all living organisms, from bacteria to mammals. 21,28 Variation of functional sulfur-containing ligands (R) in the synthetic models of [1Fe-2S] and [2Fe-2S] proteins, and of the synthesis conditions provides more thorough fundamental knowledge of the structure of the {RS 2 Fe(NO) 2 } unit, 25,[29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44] while the investigation of the pharmacological activity of these compounds, in addition to the known NO properties, opens the possibilities for practical application of mimetics of nitrosyl non-heme proteins as effective NO-generating compounds for the therapy of socially significant diseases.…”

One-pot synthesis of sulphur bridged dinuclear rhenium metallacycles via addition of S–S bond across Re–Re bond

“…Metal sulphides are of interest due to their wide application in various platforms, such as, catalyst for the removal of organosulphur compounds from the feedstock [9,10], as solid state lubricant [11], as good electrical conductor [12][13][14][15] and for their role in NO storage and transport in vivo to stabilize therapeutic protein structures in the biological processes [16][17][18]. Recent studies have shown that metal disulphides can also exhibit a variety of important nanostructures [19,20] and metal sulphide nanoparticles serve as catalysts with very high reactivities [21][22][23].…”