排序方式: 共有14条查询结果,搜索用时 15 毫秒
1.
2.
3.
Synthesis and optophysical properties of blue-emitting iridium (Ⅲ) complex bearing oxadiazole-based picolinic acid derivative 总被引:1,自引:1,他引:0
An iridium (III) bis[(4,6-difluorophenyl)pyridinato-N, C2][6-(6′-(4″-(5‴-phenyl-1‴, 3‴, 4‴-oxadiazole- 2‴-yl) phenoxy) hexyloxy picolinate) was synthesized and characterized by 1H NMR and elementary analysis in order to study the effect of ancillary ligand of the oxadiazole-based picolinic acid derivative
on optophysical properties of its iridium complex, and further to obtain an iridium complex with highly-efficient blue emission.
The thermal stability, UV absorption and photoluminescent properties of this iridium complex were investigated. Compared with
iridium (III) bis[(4,6-difluorophenyl)pyridinato-N, C2](picolinate) reported as a highly-efficient blue electroluminescent material, this iridium complex bearing an oxadiazole-based
picolinic acid derivative presents higher thermal stability, more intense UV absorption at 291 nm and similar photoluminescent
spectrum peaked at 469 nm. This indicates that tuning ancillary ligand of picolinic acid with an oxadiazole unit can improve
the optophysical properties of its iridium complex.
Foundation item: Projects(20772101, 50473046) supported by the National Natural Science Foundation of China; Project(2007FJ3017) supported
by the Hunan Provincial Science Foundation, China; Project(07C764) supported by the Science Foundation of the Education Department
of Hunan Province, China 相似文献
4.
5.
A new cyclometalated platinum complex containing 2, 5-bis(naphthalene-1-yl)-1,3,4-oxadiazole ligand was synthesized and characterized. The UV-Vis absorptions and photoluminescent properties of the ligand and its platinum complex were investigated A characteristic metal-ligand charge transfer absorption peak at 439 nm in the UV spectrum and a strong emission peak at 625 nm in the photoluminescence spectrum were observed for this complex in dichloromethane. Cyclic voltammtry (CV) analysis shows that the EHOMO (energy level of the highest occupied molecular orbital) and ELUMO (energy level of the lowest unoccupied molecular orbital) of the platinum complex are about -5.69 and -3.25 eV, respectively, indicating that the oxadiazole-based platinum complex has a potential application in electrophosphorescent devices used as a red-emitting material. 相似文献
6.
采用聚酯生产厂废液回收产品对苯二甲酸,研究出了用一步合成高钾烟花笛音剂新工艺。该法工艺新颖,流程短,产品质量稳定,收率高(97%以上),未见文献报导,为回收产品对苯二甲酸的二次利用,开辟了又一途径。 相似文献
7.
8.
9.
10.