超共轭与立体电子效应
洪鹄,黄兆和,柴正祺,张沅珒
Hyperconjugative and Stereoelectronic Effect
Hu HONG,Zhao-He HUANG,Zheng-Qi CHAI,Yuan-Jin ZHANG
表10
乙烷三种构象能量(kJ∙moL
-1
)及其成分比较
Total Energies
Coulomb Energies
Steric Stablizations Energies
Stagged (交错)
－11.8
0
11.8
Vertical (压缩)
1.5
28.9
27.4
Adiabatic (重叠)
0.8
0.8
0