一种新型红色荧光卟啉的合成、表征及光谱性质

Synthesis, Characterization and Spectrum Property of a New Red-Fluorescence Porphine

对－N，N－二苯氨基苯甲醛与吡咯在丙酸中回流直接缩合得到了一种新化合物四（N，N－二苯基对氨基）苯基卟啉（TDPAPPH2）．通过元素分析，1H NMR，IR和UV－Vis表征了其结构．该化合物能在红光区发射荧光．与无取代的四苯基卟啉（TPPH2 ）和相应的四氨基卟啉（TAPPH2 ）比较发现，其紫外光谱和荧光光谱具有较大的吸收红移．结合该化合物的结构特点用分子轨道理论对这种光谱红移现象进行了探讨．

Abstract A new polyarylaminophenylporphine, tetra(p-N,N-diphenylamino)phenylporphine(TDPAPPH2) was synthesized by direct condensation of pyrrole and p-N, N-diphenylaminophenyl alde-hyde. Its molecular structure was characterized by elemental analysis, 1H NMR, IR and UV-Vis spectra.Compared with trtraphenylporphine (TPPH2) and tetra (p-`amino) phenylporphine (TAPPH2), the absorption and emission peaks of TDPAPPH2 had large red-shifts due to the changes of LUMO and HOMOlevels.