有机化合物结构与性能的关系——激发能的同系线性规律

THE RELATIONSHIP BETWEEN STRUCTURE AND PROPERTIES OF ORGANIC COMPOUNDS

有机化合物的光谱及激发能存在着良好的同系线性规律。前文曾用HMO法对多联苯体系的同系线性规律进行了讨论,说明了对联多苯的共轭作用比间联多苯强,而后者共轭作用很弱,这可从光谱得到证实。近来,徐光宪等探讨了同系线性规律的量子化学基础,根据多烯中键长交替现象提出了MHMO法.

The energy of excitation of eight homologous series was calculated by means of PMO method.The results are in agreement with the rule of homologous linearity.The energy of excitation of eight homologous series was calculated by means of PMO method.The results are in agreement with the rule of homologous linearity.