Electric Literature of 5423-54-1, Chemistry is the experimental science by definition. We want to make observations to prove hypothesis. For this purpose, we perform experiments in the lab. 5423-54-1, Name is 1,5-Naphthyridin-4-ol,introducing its new discovery.
A series of group III metal chelates have been synthesized and characterized for the versatile application of organic light-emitting diodes (OLEDs). These metal chelates are based on 4-hydroxy-1,5naphthyridine derivates as chelating ligands, and they are the blue version analogues of well-known green fluorophore AIq3 (tris(8-hydroxyquinolinato)aluminum). These chelating ligands and their metal chelates were easily prepared with an improved synthetic method, and they were facially purified by a sublimation process, which enables the materials to be readily available in bulk quantity and facilitates their usage in OLEDs. Unlike most currently known blue analogues of AIq3 or other deep blue materials, metal chelates of 4-hydroxy-1,5-naphthyridine exhibit very deep blue fluorescence, wide band gap energy, high charge carrier mobility, and superior thermal stability. Using a vacuum-thermal-deposition process in the fabrication of OLEDs, we have successfully demonstrated that the application of these unusal hydroxynaphthyridine metal chelates can be very versatile and effective. First, we have solved or alleviated the problem of exciplex formation that took place between the hole-transporting layer and hydroxynaphthyridine metal chelates, of which OLED application has been prohibited to date. Second, these deep blue materials can play various roles in OLED application. They can be a highly efficient nondopant deep blue emitter: maximum external quantum efficiency etaext of 4.2%; Commision Internationale de L’Eclairage x, y coordinates, CIExy = 0.15, 0.07, Compared with AIq3, Bebq 2 (beryllium bis(benzoquinolin-IO-olate)), or TPBI (2,2 ,2 -(1,3,5-phenylene)tris(1-phenyl-1 H-benzimidazole), they are a good electron-transporting material: low HOMO energy level of 6.4 – 6.5 eV and not so high LUMO energy level of 3.0-3.3 eV. They can be ambipolar and possess a high electron mobility of 10-4cm2/V s atan electric field of 6.4 ¡Á 105 V/cm. They are a qualified wide band gap host material for efficient blue perylene (CIExy = 0.14, 0.17 and maximum etaext 3.8%) or deep blue 9,10-diphenylanthracene (CIE x,y= 0.15, 0.06 and maximum etaext2.8%). For solid state lighting application, they are desirable as a host material for yellow dopant (rubrene) in achieving high efficiency (etaext 4.3% and etap 8.7 Im/w at an electroluminance of 100 cd/m2 or etaext 3.9% and etap 5.1 Im/w at an electroluminance of 1000 cd/m2) white electroluminescence (CIEx,y= 0.30, 0.35).
We¡¯ll also look at important developments in the pharmaceutical industry because understanding organic chemistry is important in understanding health, medicine, the role of 5423-54-1, and how the biochemistry of the body works.Electric Literature of 5423-54-1
Reference£º
1,397-Naphthyridine – Wikipedia,
1,8-Naphthyridine | C8H6N391 – PubChem