A series of diimines have been synthesized by coupling of diamine with substituted benzaldehydes. The purities of these diimines were checked by their analytical and spectroscopic data. The spectral frequencies νCN (cm-1), NMR chemical shifts (δ, ppm) of C-H and C=N of these diimines have been correlated with Hammett substituent constants, F and R parameters using single and multi-linear regression analysis. From the results of statistical analysis, the effect of substituents on the above spectral data has been studied.
通过将二胺与取代
苯甲醛偶联,合成了一系列二
亚胺。通过分析和光谱数据检查了这些二
亚胺的纯度。通过单线和多线回归分析,将这些二
亚胺的频谱频率νCN(cm-1)、NMR
化学位移(δ,ppm)的C-H和C=N与哈米特取代常数、F和R参数相关联。根据统计分析的结果,研究了取代基对上述光谱数据的影响。