Cappello, Daniela published the artcileA Boron Difluoride Hydrazone (BODIHY) Polymer Exhibits Aggregation-Induced Emission, COA of Formula: C12H9NO, the publication is Macromolecular Rapid Communications (2021), 42(8), 2000553, database is CAplus and MEDLINE.
Polymers that exhibit aggregation-induced emission (AIE) find use, for example, as cell-imaging agents and as fluorometric sensors due to their unique optical properties. However, the structural diversity of AIE-active polymers has not necessarily advanced at the same rate as their applications. In this work, ring-opening metathesis polymerization is used to synthesize the first example of a polymer (Mn = 61,600 g mol-1, Dj = 1.32) containing boron difluoride hydrazone (BODIHY) heterocycles in its repeating unit. The BODIHY monomer and polymer described absorb and emit in the visible region in solution (λabs = 428 and 429 nm, λem = 528 and 526 nm) and as thin films (λabs = 443 and 440 nm, λem = 535 and 534 nm). Monomer (ΦFilm = 10%) and polymer (ΦFilm = 6%) exhibit enhanced emission as thin films compared to solution (ΦSoln â?1%) as well as AIE upon the addition of water to DMF solutions as a result of restriction of intramol. motion. Enhancement factors for the monomer and polymer are determined to be 58 and 15, resp. The title BODIHY polymer exhibited an earlier onset of AIE and enhanced sensitivity to solution viscosity when compared to the parent monomer.
Macromolecular Rapid Communications 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, COA of Formula: C12H9NO.
Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem