In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called A highly efficient solution and solid state ESIPT fluorophore and its OLED application, published in 2021, which mentions a compound: 27828-71-3, Name is 5-Hydroxynicotinic acid, Molecular C6H5NO3, Recommanded Product: 27828-71-3.
We present herein the synthesis and photophysics of 2,2′-bipyridine-3,3′-diol-5,5′-dicarboxylic acid Et ester (BP(OH)2DCEt2), an excited state intramol. proton transfer (ESIPT)-based fluorophore featuring two identical intramol. hydrogen bonds. BP(OH)2DCEt2 emits efficiently not only in solution, including protic solvents (λem = 521 nm, Φf = 40 to 75%), but also in crystalline state (λem = 530 nm, Φf = 51%). In addition, its saponified form (Na2BP(OH)2DC) is highly fluorescent in water (λem = 490 nm, Φf = 51%). Finally, the good electroluminescence performance of BP(OH)2DCEt2 is also demonstrated in an OLED device.
This compound(5-Hydroxynicotinic acid)Recommanded Product: 27828-71-3 was discussed at the molecular level, the effects of temperature and reaction time on the properties of the compound were discussed, and the optimum reaction conditions were selected.
Reference:
Chapter 1 An introduction to palladium catalysis,
Palladium/carbon catalyst regeneration and mechanical application method