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1.
介绍了以苯酚和多聚甲醛为原料,在催化剂作用下,经一步反应直接合成水杨醛的情况。并探讨了催化剂、溶剂、投料比等多种因素对产率的影响。  相似文献   
2.
以5-氨基-1,3-苯二甲酸和对叔丁基苯甲酰肼为原料合成了一种新型电致磷光材料中间体5-溴-1,3-二[2-(4'-叔丁基苯基)-1,3,4-(口恶)二唑基-5)]苯,探讨了反应条件对合成反应的影响,反应的总收率为20.0%,方法可行.  相似文献   
3.
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   
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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.
朱卫国  朱美香 《化学世界》1994,35(3):154-155
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.
以5-氨基-1,3-苯二甲酸和对叔丁基苯甲酰肼为原料合成了一种新型电致磷光材料中间体5-溴-1,3-二[2-(4′-叔丁基苯基)-1,3,4-(噁二唑基-5)]苯,探讨了反应条件对合成反应的影响,反应的总收率为20.0%,方法可行。  相似文献   
8.
合成并表征了两种铕 苯甲酰环酮 邻菲罗啉三元螯合物EuL3Phen (L =2 苯甲酰环己酮 (BCH) ,L′ =2 苯甲酰 1 萘满酮 (BT) ,Phen =1,10 邻菲罗啉 )。研究了二者在固体和溶液下的荧光性质及其溶液的紫外光谱性质。结果表明 ,两种铕螯合物都能发射出铕离子的特征红色荧光 ,其中Eu(BT) 3Phen的荧光性能最佳。  相似文献   
9.
经酰化、缩合反应,合成得到1种新型β二酮配体5-(4″,4″,4″-三氟-1″,3″-丁二酮基)-2,2′-联噻吩,探讨合成条件对反应的影响,并研究了该β-二酮配体的紫外可见光谱和红外光谱性质。  相似文献   
10.
4-叔丁基碘苯的合成研究   总被引:4,自引:0,他引:4  
采用叔丁基苯和4-叔丁基苯甲酸两种方法合成对4-叔丁基碘苯,产率分别达到42.1%和29.4%。研究表明,叔丁基苯方法比4-叔丁基苯甲酸方法简单易行、成本低。  相似文献   
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