Coumarin-pyridone conjugate as a fluorescent tag for LFPs visualization and electrochemical sensor for nitrite detection

Abstract

In this work, D-π-A based coumarin-pyridone conjugate (CPC) was synthesised by one pot multicomponent reaction and structure was proven through IR, NMR and HRMS spectra. Quantum chemical parameters and molecular...

Effect of a Substituent in the Fourth Position on the Optical Properties of 2-Oxonicotinonitriles

“…2-Oxonicotinonitrile derivatives (2-oxo-1,2dihydropyridine-3-carbonitrile, 3-cyanopyrid-2-one) are of considerable interest due to their diverse applications in various fields of science and technology. Among them, substances were found that are used in pharmaceuticals [1][2][3][4][5][6][7][8][9][10][11][12][13][14], agrochemistry [15], as agents of reducing steel corrosion [16], and in the creation of organic functional materials [17][18][19][20][21][22][23][24][25][26][27][28]. Substituted 2-oxonicotinonitriles are well known for their versatile biological activity.…”

“…In addition, 2-oxonicotinonitrile derivatives are known for their unique photophysical properties and a wide range of potential applications based on them, for example, as dyes and pigments [17][18][19][20][21], nonlinear optical (NLO) and photorefractive materials [22], dye-sensitized solar cells (DSSC) [23,24], an emitter in a device with a host-guest configuration in the manufacture of OLED displays [25], a fluorescent probe for visualizing lipid droplets to distinguish between dead and live zebrafish [26], a fluorescent dye for visualizing latent fingerprints and detecting nitrite ion (NO 2-) [27], a multisensitive sensor for Ru 3+ , Fe 3+ , CrO 4 2-, Cr 2 O 7 2and MnO 4 ions [28]. Many of the above properties are based on the luminescence phenomenon.…”

“…The pyridone fragment, in particular, the 2-oxonicotinonitrile one, causes the appearance of fluorescent properties in the molecule [25][26][27][28][29][30][31][32][33][34][35][36]. However, there is practically no information in the literature on the systematic study of the effect of an individual substituent on the photophysical properties of such compounds, despite the fact that the optical properties can be finely tuned by introducing individual functional groups.…”

Coumarin‐Benzothiazole Hydrazone for Probing of Latent Fingerprints and Anti‐Counterfeiting Applications

“…[23,24] The determination of bandgap, the energy of HOMO and LUMO are very essential in OLED applications, also in photovoltaics, which can be achieved theoretically and also experimentally. [25] From the above research findings on coumarin fluorescent tags, we were inspired to design a coumarin hydrazone (CHFT) and investigated the solvatochromic behavior on absorption and emission, computational studies, aggregation-induced emission (AIE) behavior and used for the latent fingerprint development and anti-counterfeiting application.…”

“…The determination of bandgap, the energy of HOMO and LUMO are very essential in OLED applications, also in photovoltaics, which can be achieved theoretically and also experimentally [25] …”