【摘要】 采用Heck反应合成了2个三苯胺多枝化合物N,N,N-三{5-(4-叔丁基苯基)-1,3,4-噁二唑-2-苯乙烯基-4-苯基}胺(化合物1)和N,N,N-三[4-{2-(3,5-二-[5-(4-叔丁基苯基)-1,3,4-噁二唑-2-]苯基}-1-乙烯基}苯基}胺(化合物2),并测定了它们的吸收光谱、单光子荧光光谱和双光子荧光光谱。化合物1和2在二氯甲烷溶液中单光子荧光发射峰分别位在536和487nm。在锁模Nd∶YAG激光器800nm激光照射下,化合物1和2发射出很强的双光子上转换荧光,其最大波长分别在541和518nm。更多还原

【Abstract】 Two triphenylamine multibranch chromophores N,N,N-tris-[4-(2-{4-[5-(4-tert-butyl-phenyl)-1,3,4-oxadiazol-2-yl]-phenyl}-vinyl)-phenyl]amine(1) and N,N,N-tris[4-{2-(3,5-di-{5-[4-(tert-butyl)phenyl]-1,3,4-oxadiazol-2-yl}phenyl)-1-ethenyl}phenyl] amine(2)were prepared using Heck reaction.The absorption,single photon excited fluorescence,two-photon excited fluorescence spectra have been recorded.Using 400nm excitation wavelength in CHCl2,the single-photon excited fluorescence of 1 is in the green region with a peak at 536nm and chromophore 2 in the blue region with a peak at 487 nm.The very strong frequency-upconverted fluorescence emission with the central wavelength at 541nm and 518nm in the solution of CHCl2 can be easily observed from chromophores 1-2 solution excited with a Nd: YAG pumped dye laser at the wavelength 800nm in CHCl2 at a concentration of 10-2mol/L.更多还原