Kumar Mudi, Prafullya published the artcileHead-to-Tail interlocking aromatic rings of a hydrazine functionalized Schiff base for the development of Nano-aggregates with blue emission: Structural and spectroscopic characteristics, Recommanded Product: Phenyl(pyridin-2-yl)methanone, the publication is Journal of Molecular Liquids (2021), 117193, database is CAplus.
We report the synthesis, physicochem. and morphol. characterization, supramol. interactions and aggregation-induced blue emission of a newly developed Schiff base, 1,2-bis(phenyl(pyridin-2-yl)methylene)hydrazine (P18). The compound was synthesized through a condensation reaction between hydrazine and 2-benzoylpyridine under reflux in ethanol. The photophys. behavior of the Schiff base was studied in both monomeric and aggregated forms. Interestingly, the mol. aggregate showed a significant blue shift with ∼ 20 fold higher fluorescence intensity with lifetime, 0.99 ns in the aqueous phase than that of monomeric form, attributed to the development of J-type aggregation. The crystal structure, C-H···π and π…π interactions, were enumerated to decipher the nature of aggregation. The Schiff base consisting of four aromatic rings (two pyridine and two Ph rings) displayed a short C-H···π and a long distant π···π interactions causing a head-to-tail type interlocking of aromatic rings. Energy framework anal. confirmed the predominance of dispersive forces (-192.4 kJ/mol) to the cluster of mols., thus playing a significant role in the restriction of intramol. motion of the aromatic rings of P18. A restrain on the rotational probability of = N-N = and Ar-C- bonds leads to an enhancement of an intense fluorescence property of nano-aggregate with blue light emission in solid state. The propagation of the rectangular-shaped monomeric probe in the nano-aggregate with an average hydrodynamic size of 270(±3) nm was established with field emission SEM, dynamic scattering light, and electron dispersive X-ray spectral anal.
Journal of Molecular Liquids published new progress about 91-02-1. 91-02-1 belongs to pyridine-derivatives, auxiliary class Pyridine,Benzene,Ketone, name is Phenyl(pyridin-2-yl)methanone, and the molecular formula is C12H9NO, Recommanded Product: Phenyl(pyridin-2-yl)methanone.
Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem