Electric Literature of C12H12N2In 2019 ,《Syntheses, X-Ray Crystal Structures, Emission Properties and DFT Calculations of Monoprotonated Polypyridines》 appeared in ChemistrySelect. The author of the article were Yoshikawa, Naokazu; Yamazaki, Shoko; Kato, Natsumi; Kubota, Akari; Sawai, Mika; Noda, Kaoru; Kanehisa, Nobuko; Inoue, Tsuyoshi; Nakata, Eiji; Takashima, Hiroshi. The article conveys some information:
Monoprotonated compounds [(L)HPF6] were prepared by the reaction of (L=bpy, phen, dpphen, bqn and ppy) with concentrated HCl in water. Monoprotonated pyridine rings are hydrogen bonded intramolecularly to the adjacent pyridine ring and intermolecularly to the adjacent PF6- in compounds These hydrogen bonds restrain the nonradiative decay to produce intense emission. D. functional theory was applied to interpret the planarity in compounds The attachment of one proton to the nitrogen in [(dpphen)HPF6] and [(bqn)HPF6] leads to the strong emission in acetonitrile (Φ = 0.046 and 0.097, resp.). In particular, the attachment of one proton to the ppy nitrogen results in exhibiting a strong emission with a large quantum yield (Φ = 0.264). The experimental part of the paper was very detailed, including the reaction process of 4,4′-Dimethyl-2,2′-bipyridine(cas: 1134-35-6Electric Literature of C12H12N2)
4,4′-Dimethyl-2,2′-bipyridine(cas: 1134-35-6) is used in the synthesis of a series of o-phenanthroline-substituted ruthenium(II) complexes.Electric Literature of C12H12N2 Furthermore, 4,4′-Dimethyl-2,2′-bipyridine is used as a chemical Intermediate. It can be used for the determination of ferrous and cyanide compounds.