Electroactive films of [Cu(dpp)2]+ covalently attached to polypyrrole (dpp = 2,9-diphenyl-1,10-phenanthroline)

Conjugated Polymer-Based Chemical Sensors

“…In comparison, ligand 60 electropolymerized in the absence of the copper ion resulted in films that did not effectively bind metal ions. It was concluded that a template effect resulted from the polymerization of [Cu( 60 ) 2 ] + followed by demetalation left cavities of a similar geometrical size and tetrahedral coordination in the film, which could be used for subsequent metal ion sensing . Further studies of system 60 showed similar demetalation and remetalation with Zn 2+ and Co 2+ …”

“…The following section compiles a large number of CP-based systems composed of a diverse array of receptor and structural units. In 1988, Bidan et al reported a 1,10-phenanthroline-based ligand with pendant alkyl chain tethered pyrrole groups ( 60 ) …”

Voltammetric behaviour, homogeneous charge transport dynamics and electrocatalytic properties of an Os2+ functionalised pyrrole monomer

“…Their exists two main methods of surface immobilisation, namely incorporation of the ionic complexes into a suitable polymeric matrix [11][12][13] or the electropolymerisation of the bypyridine complex that has been covalently grafted to reactive functional groups such as pyrroles and thiophenes. Conducting polymer films containing metal polypyridyl complexes, such as those of Co [14], Cu [15], Ru [12,16,17], Fe [17], Re [18] and Ni [19], covalently grafted to the polymer backbone have also received a lot of attention. The rationale for attachment of polypyridyl complexes stems from the fact that electropolymerised films of polypyridyl metal complexes are moderately permeable to ferrocene [17] and extremely permeable to small anions [16] such as the bromide ion, and as a result possess high ionic conductivities, but unfortunately exhibit poor to moderate electron transport properties.…”

Preparation electroactive film of (n‐pyrrolyl)1,1‐methane dihydroxamic acid and its derivative containing complexing cavities preformed by entwining ligands on metallic centers

“…Oxidative electropolymerization of the various substituted pyrrole was carried out either by reported potential scanning or by electrolysis at a fixed potential by analogy with previously reported works 4, 22. The species resulting from oxidation of the precursor monomers polymerized and led to a film deposited on the electrode.…”

“…The obtained material in this way must be highly entangled in nature, this characteristic being kept even after demetalation. Bidan et al22 demetalated polypyrrole containing phenanthroline derivatives by action of cyanide ions by simply dipping the polymer films into an acetonitrile‐water‐potassium cyanide solution. In the same method, using potassium thiocyanate instead of cyanide, demetalation of various polymeric films built around Fe III complexes can be performed.…”