【摘要】 研究了十一个双向延伸体系的四十八组光电子能谱数据,发现它们的各级垂直电离势符合同系能级线性规律,线性相关系数优良率为95.8％,用由光电子能谱得到的有关电离势,讨论了Π⁴₄的超共轭效应。更多还原

【Abstract】 In the present investigation we have collected 48 sets of vertical ionization potentials of two direction extending system from UV photo-electron spectroscopy and found they fit the following linear equationIp(n,k) = a + bX(n,k)where Ip(n,k) is the kth ionization potential of the nth member of the homologous series, a and b are constant, X(n,k) is called the homologous energy factor and is equal toX(n,k)= (2k- 1)/k sin (kπ/2N +1)60.4% of the correlation are of the "excellent" grades with correlation factor r≥0.99,and 35.4% of the"good "grades with r≥0.95 and others with r≥0.90.Also we have discussed the hyperconjugative effect of∏44.更多还原