Luminescent properties of some imidazole and oxazole based heterocycles: Synthesis, structure and substituent effects
作者:Abiodun O. Eseola、Wen Li、Wen-Hua Sun、Min Zhang、Liwei Xiao、Joseph A.O. Woods
DOI:10.1016/j.dyepig.2010.07.005
日期:2011.3
ridine and 2,4-di-tert-butyl-6-(1H-phenanthro[9,10-d]imidazol-/oxazol-2-yl)phenol derivatives were synthesized and characterized using elemental and spectroscopic analyses as well as single-crystal X-ray diffraction analysis. The oxazole derivatives displayed higher photoluminescence efficiencies than their imidazole analogues. The 2-(phenanthro[9,10-d]oxazole/imidazol-2-yl)pyridine derivatives displayed
一系列的2-R-6-(芳基恶唑-/咪唑-2-基)吡啶和2,4-二叔丁基-6-(1H-菲并[9,10-d]咪唑-/恶唑-2合成并使用元素分析和光谱分析以及单晶X射线衍射分析对(yl)苯酚衍生物进行了表征。恶唑衍生物显示出比其咪唑类似物更高的光致发光效率。2-(菲[9,10-d]恶唑/咪唑-2-基)吡啶衍生物在非极性溶剂中的量子产率接近于1,但在极性溶剂中被淬灭。恶唑类似物在400nm和550nm区域之间产生可逆的荧光光开关,而咪唑类似物在极性溶剂中经历不可逆的光诱导的准分子形成。1个1 H NMR被用来合理化2-(菲并[9,10-d]咪唑-2-基)吡啶衍生物的准分子之间的分子间相互作用的建议模式。