In an article, author is Yang, Xiao-Han, once mentioned the application of 33332-25-1, Name is Methyl 5-chloropyrazine-2-carboxylate, molecular formula is C6H5ClN2O2, molecular weight is 172.57, MDL number is MFCD01632102, category is Pyrazines. Now introduce a scientific discovery about this category, Safety of Methyl 5-chloropyrazine-2-carboxylate.
N,N-heterocyclic Ancillary Ligands for Enhanced Photoluminescence Quantum Yields of Orange/Red-Emitting 1-(4-(Trifluoromethyl)phenyl)isoquinoline-Based Iridium (III) Complexes
Four new cationic iridium (III) complexes: [(cf(3)piq)(2)Ir(pzpy)]+PF6- (Ir1), [(cf(3)piq)(2)Ir(pzpyz)]+PF6- (Ir2), [(cf(3)piq)(2)Ir(impy)]+PF6- (Ir3), and [(cf(3)piq)(2)Ir(impyz)]+PF6- (Ir4) (where cf(3)piq=1-(4-(trifluoromethyl)phenyl)isoquinoline, pzpy=2-(1H-pyrazol-3-yl)pyridine, pzpyz=2-(1H-pyrazol-3-yl)pyrazine, impy=2-(1H-imidazol-2-yl)pyridine, and impyz=2-(1H-imidazol-2-yl)pyrazine) have been synthesized and fully characterized. The single crystal structure of Ir3 has been determined by X-ray diffraction, and confirmed to have two hydrogen bonds (C14-H14…N2 and C57-H57…N9) and one intermolecular pi-pi stacking interaction. The UV-vis absorption, photoluminescence, and electrochemistry properties of all complexes have been studied. These complexes emit orange-red photoluminescence with quantum yields of 28-46 % and excited state lifetimes of 0.48-0.65 mu s in CH2Cl2 solution at room temperature. Based on the DFT calculations, we concluded that their emission originated predominantly from a hybrid (MLCT)-M-3/(ILCT)-I-3 excited state.
Do you like my blog? If you like, you can also browse other articles about this kind. Thanks for taking the time to read the blog about 33332-25-1, Safety of Methyl 5-chloropyrazine-2-carboxylate.