Hyperconjugation not steric repulsion leads to the staggered s ...

而不是老的教到的阻效应。

The results show that steric hinderance effect of methyl groups in the poly-o-methylaniline is more prominent than induction effect and hyperconjugation.

结果表,聚邻甲苯胺中甲基的阻效应远大于诱导效应和超共轭效应。