《Oxidative electropolymerization of iron and ruthenium complexes containing aniline-substituted 2,2′-bipyridine ligands》 was written by Horwitz, Colin P.; Zuo, Qi. Formula: C12H10Cl2N2 And the article was included in Inorganic Chemistry on April 29 ,1992. The article conveys some information:
New bipyridine ligands with pendant aniline groups [4-CH2R-4′-CH2R’-2,2′-bipyridine, where R = NHPh and R’ = H (anilbpy) and R = R’ = NHPh (bis-anilbpy)] and the electrochem. properties of their Fe and Ru complexes, [Fe(anilbpy)3][PF6]2 (4), [Ru(bpy)2(anilbpy)][PF6]2 (5), and [Ru(bpy)2(bis-anilbpy)][PF6]2 (6) [where bpy = 4,4′-Me2-2,2′-bipyridine] are described. All complexes, except 5, form polymer films from an MeCN solution containing 0.1M Bu4NClO4 on Pt and glassy C electrodes; 1-4 are also polymerized onto NESA glass electrodes by repetitively cycling the electrode potential between 0 and 1.1 V or 0 and 1.5 V vs. SSCE. Two new redox couples arising from tail-to-tail and head-to-tail coupling of aniline groups on adjacent monomers are visible in the voltammograms during the film growth process carried out between 0 and 1.1 V. A broad, ill-defined redox couple for the tail-to-tail coupled aniline species is seen in polymer films grown at 1.5 V. The films exhibit voltammetric properties on all electrode materials expected for metal-centered oxidation and ligand-centered reductions when the coated electrodes are transferred to a MeCN solution containing only the supporting electrolyte. The visible spectra of the polymers on conductive glass electrodes show MLCT bands in the same region as the monomers with λmax ∼540 nm for poly-1 and poly-2 and λmax = 460 nm for poly-3 and poly-4. A new absorption band appears at λmax = 720 nm, assignable to a monocation of diphenylamine for films on the conductive glass oxidized to 0.9 V, and its intensity decreases with application of increasing pos. potentials, with a new band appearing at λmax ∼440 nm arising from the 2-electron oxidation products of diphenylamine and benzidine. The experimental part of the paper was very detailed, including the reaction process of 4,4′-Bis(chloromethyl)-2,2′-bipyridine(cas: 138219-98-4Formula: C12H10Cl2N2)
4,4′-Bis(chloromethyl)-2,2′-bipyridine(cas: 138219-98-4) belongs to pyridine derivatives. The ring atoms in the pyridine molecule are sp2-hybridized. The nitrogen is involved in the π-bonding aromatic system using its unhybridized p orbital. Formula: C12H10Cl2N2The lone pair is in an sp2 orbital, projecting outward from the ring in the same plane as the σ bonds.