129485-83-2Relevant articles and documents
Efficient electroluminescence of sky-blue iridium(III) complexes for organic light-emitting diodes
Su, Ning,Shen, Cheng-Zhen,Zheng, You-Xuan
, p. 100 - 106 (2018/06/18)
Two novel sky-blue iridium(III) complexes Ir(dfppy)2pypzpy and Ir(dfppy)2phpzpy were synthesized, in which 2-(2,4-difluorophenyl)pyridine (dfppy) was used as main ligand, 2,2'-(1H-pyrazole-3,5-diyl)dipyridine (pypzpy) and 2-(3-2-(3-p
Highly efficient green electroluminescence of iridium(iii) complexes based on (1: H -pyrazol-5-yl)pyridine derivatives ancillary ligands with low efficiency roll-off
Su, Ning,Lu, Guang-Zhao,Zheng, You-Xuan
, p. 5778 - 5784 (2018/06/07)
Four iridium(iii) complexes, namely Ir-me, Ir-cf3, Ir-py, and Ir-ph, were synthesized, in which 2-(4-trifluoromethyl)phenylpyridine (tfmppy) was used as the main ligand and 2-(3-methyl-1H-pyrazol-5-yl)pyridine (mepzpy), 2-(3-(trifluoromethyl)-1H-pyrazol-5-yl)pyridine (cf3pzpy), 2,2′-(1H-pyrazole-3,5-diyl)dipyridine (pypzpy), and 2-(3-phenyl-1H-pyrazol-5-yl)pyridine (phpzpy) were applied as ancillary ligands, respectively. All complexes showed similar green light peaking at 494-499 nm with high phosphorescence quantum efficiency (0.76-0.82). The organic light-emitting diodes (OLEDs) with the structure of ITO/HATCN (hexaazatriphenylenehexacabonitrile) (5 nm)/TAPC (bis[4-(N,N-ditolylamino)-phenyl]cyclohexane, 50 nm)/Ir complexes (8 wt%): TCTA (4,4′,4′′-tri(9-carbazoyl)triphenylamine, 20 nm)/TmPyPB (1,3,5-tri[(3-pyridyl)-phen-3-yl]benzene, 40 nm)/LiF (1 nm)/Al (100 nm) displayed high current efficiency with low efficiency roll-off. Moreover, the device based on the Ir-me complex exhibited the best performances with a maximum luminance of 38 155 cd m-2, maximum current efficiency of 92 cd A-1, and a maximum external quantum efficiency of 28.90%. These results suggested that green Ir(iii) complexes were obtained by modification of the ppy ligand and rational introduction of (1H-pyrazol-5-yl)pyridine derivatives as the ancillary ligands for high efficient OLEDs.
SGC STIMULATORS
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Page/Page column 149; 152, (2012/01/15)
Compounds of Formula (I) are described. They are useful as stimulators of sGC, particularly NO-independent, heme-dependent stimulators. These compounds may be useful for treating, preventing or managing various disorders that are herein disclosed.
SYNTHESIS AND REACTIONS OF NOVEL 1,3-DIPYRIDINYL-1,3-PROPANEDIONES
Ferles, Miloslav,Liboska, Radek,Trska, Petr
, p. 1228 - 1233 (2007/10/02)
Claisen condensation leading to new 1,3-dipyridinyl-1,3-propanediones Id-If is described.The series of 3,5-dipyridinylpyrazoles IIa-IIf was completed and N-phenyl derivatives IIg-IIi, as well as isoxazoles IIIa and IIIb, were prepared.