反式和顺式-1,2-二氰-(4-乙基苯)乙烯结构的谱学分析

Spectral Analysis of the Structure of Trans/Cis-1,2-Dicyano-(p-Ethylphenyl)alkene

合成了2种新型的可溶性四氮杂卟啉中间体:反式-1,2-二氰-(4-乙基苯)乙烯和顺式-1,2-二氰-(4-乙基苯)乙烯。通过UV-Vis,FTIR,GC/MS,1H NMR等方法对这2种化合物的结构进行了表征,给出了它们完整的结构信息。分析比较了顺、反异构体结构上的差异,分析两者的紫外-可见光谱(UV-Vis)、红外光谱(FTIR)和核磁共振光谱(1H NMR)谱图的差异及其产生原因。

Two precursors of soluble tetraazaporphrins, trans-1,2 dicyano-（p-ethylphenyl）alkene and cis-1, 2-dicyano-（p-ethyl- phenyl）alkene, were synthesized. Their structures were confirmed by elemental analysis, FTIR, UV-Vis, GC/MS and ^1H NMR. The differences in isomer structures of the trans and cis-1,2 dicyano-（p-ethylphenyl）alkenes were represented by the obvious differences in the spectra of UV-Vis, FTIR and ^1H NMR. In addition, the reasons for the differences were also analyzed.