Synthesis and properties of bridged phthalocyaninatoiron(II) complexes with bidentate aliphatic isocyanides

Application of Lever’s EL Parameter Scale toward Fe(II)/Fe(III) versus Pc(2-)/Pc(1-) Oxidation Process Crossover Point in Axially Coordinated Iron(II) Phthalocyanine Complexes

“…All phthalocyanine complexes were prepared as described previously. ,,,, A tetrabutylammonium tetrakis­(pentafluorophenylborate) (TFAB) electrolyte was prepared following the reported protocol . Dimethyl sulfoxide (DMSO, anhydrous, ≥99.9%), DriSolv anhydrous dichloromethane (DCM, ≥99.8%), pyridine (Py, anhydrous, 99.8%), potassium cyanate (KNCO, 96%), and tetrabutylammonium perchlorate (TBAP, for electrochemical analysis, ≥99.0%; caution: perchlorate salts are potentially explosive and should be handled with care) were all purchased from Sigma-Aldrich and used as received.…”

“…In light of Lever’s work and the considerable academic and industrial interest surrounding iron phthalocyanine (PcFe II ) derivatives, − this work focuses on expanding the already rich chemistry of these complexes. Indeed, iron phthalocyanine complexes have been studied as catalysts for C–H bond activation, − electrocatalysts for the oxygen reduction reaction, − active components for catalytic cancer therapy, , platforms for optical detection of small molecules, − and composite materials for electrochemical detection of biologically relevant species. − The axial coordination of nitrogen bases, − phosphines and phosphites, − nitroso compounds, sulfoxides and sulfides, − carbon monoxide, − and isonitriles − to iron­(II) phthalocyanine was studied by UV–visible, NMR, and Mössbauer spectroscopies as well as by crystallography. Based on early electrochemical, spectroelectrochemical, chemical, , and photochemical oxidation data, it was always assumed that the highest occupied m...…”

Accurate Prediction of Mössbauer Hyperfine Parameters in Bis-Axially Coordinated Iron(II) Phthalocyanines Using Density Functional Theory Calculations: A Story of a Single Orbital Revealed by Natural Bond Orbital Analysis

“…One of the best-studied synthetic heme analogues is iron phthalocyanine. Coordination compounds of iron phthalocyanine vary between Fe­(I) and Fe­(IV) derivatives, with a diversity of spin states. − Monomeric and dimeric iron phthalocyanine complexes can facilitate versatile chemistry, including the oxidization of a large array of organic substrates, and participate in electrocatalytic oxygen reduction. − In addition, iron phthalocyanines have been proposed as active components in catalytic antibacterial and cancer therapy, , electrochemical detection of organic substrates, − and optical sensors for the detection of carbon monoxide or nitrogen oxides. − The most diverse group of iron phthalocyanine derivatives are bis-axially coordinated iron­(II) compounds, which have the general formulas PcFeL 2 , PcFeL′L″, or [PcFeX 2 ] 2– (where L, L′, and L″ are neutral ligands and X – are anionic ligands). − Axial ligands such as nitrogen bases (ammonia, organic amines, ,− ,− azoles, , pyridines, − and other heterocyclic nitrogen donors − ), isonitriles, − carbon monoxide, − sulfides and sulfoxides, − cyanide, ,,,,…”

Preparation and optical and electrical evaluation of bulk SiO2 sonogel hybrid composites and vacuum thermal evaporated thin films prepared from molecular materials derived from (Fe, Co) metallic phthalocyanines and 1,8 dihydroxiantraquinone compounds

“…The one-dimensional coordination polymers of MPc adopt an enforced tetragonal packing; therefore they show relatively high electrical conductivity [5]. Ligand-bridged complexes [MPc(L)] n (M = Fe, Co, Mn, Ru, Os; L = cyano, pyrazine, tetrazine, other bidentate ligands) have been previously reported [5,8,9].…”