So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Bhaumik, Chanchal; Das, Shyamal; Saha, Debasish; Dutta, Supriya; Baitalik, Sujoy researched the compound: 4-(p-Tolyl)-2,2:6,2-terpyridine( cas:89972-77-0 ).Application In Synthesis of 4-(p-Tolyl)-2,2:6,2-terpyridine.They published the article 《Synthesis, Characterization, Photophysical, and Anion-Binding Studies of Luminescent Heteroleptic Bis-Tridentate Ruthenium(II) Complexes Based on 2,6-Bis(Benzimidazol-2-yl)Pyridine and 4′-Substituted 2,2′:6′,2” Terpyridine Derivatives》 about this compound( cas:89972-77-0 ) in Inorganic Chemistry. Keywords: ruthenium bisbenzimidazolylpyridine substituted terpyridine complex preparation crystal structure; cyclic voltammetry ruthenium bisbenzimidazolylpyridine substituted terpyridine complex; luminescence ruthenium bisbenzimidazolylpyridine substituted terpyridine complex; anion receptor sensor ruthenium bisbenzimidazolylpyridine substituted terpyridine complex. We’ll tell you more about this compound (cas:89972-77-0).
A series of heteroleptic tridentate ruthenium(II) complexes of composition [(H2pbbzim)Ru(tpy-X)](PF6)2 (1-7), where H2pbbzim = 2,6-bis(benzimidazole-2-yl)pyridine and tpy-X = 4′-substituted terpyridine ligands with X = H, p-methylphenyl (PhCH3), p-bromomethylphenyl (PhCH2Br), p-dibromomethylphenyl (PhCHBr2), p-cyanomethylphenyl (PhCH2CN), p-triphenylphosphonium methylphenyl bromide (PhCH2PPh3Br), and 4′-formylphenyl (PhCHO) groups, was synthesized and characterized by using standard anal. and spectroscopic techniques. These compounds were designed to increase the excited-state lifetime of ruthenium(II) bis(terpyridine)-type complexes. The x-ray crystal structure of a representative compound 2, which crystallized with monoclinic space group P2(1)/c, was determined The absorption spectra, redox behavior, and luminescence properties of the ruthenium(II) complexes were thoroughly studied. All of the complexes display moderately strong luminescence at room temperature with lifetimes at 10-58 ns. Correlations were obtained for the Hammett σp parameter with their MLCT emission energies, lifetimes, redox potentials, proton NMR chem. shifts, etc. The anion binding properties of all the complexes as well as the parent ligand H2pbbzim were studied in acetonitrile using absorption, emission, and 1H NMR spectral studies, and the metalloreceptors act as sensors for F-, AcO-, and to some extent H2PO4-. At a relatively lower concentration of anions, a 1:1 H-bonded adduct is formed; however, in the presence of an excess of anions, stepwise deprotonation of the two benzimidazole N-H fragments occurs, an event which is signaled by the development of vivid colors visible with the naked eye. The receptor-anion binding constants were evaluated. Cyclic voltammetric (CV) measurements carried out in acetonitrile-dimethylformamide (9:1) provided evidence in favor of anion (F-, AcO-) concentration dependent electrochem. responses, enabling 1-7 to act as suitable electrochem. sensors for F- and AcO- ions.
In addition to the literature in the link below, there is a lot of literature about this compound(4-(p-Tolyl)-2,2:6,2-terpyridine)Application In Synthesis of 4-(p-Tolyl)-2,2:6,2-terpyridine, illustrating the importance and wide applicability of this compound(89972-77-0).
Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI