steric

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

而不是老的教科书提到的位效应。

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

结果表明,聚邻甲苯胺中甲基的空间位效应远大于诱导效应和超共轭效应。

As steric hindrance of the aryl amine decreased and nucleophilicity increased, occurrence of the transfor-mation reaction increased and herbicidal activity of the product decreased.

芳胺空间位越小,亲核性越强,副反应越生,产物除草活性越低。

Dextrates, Valerian extract, Natural flavors, Starch, Steric Acid, Dried Liver, Dried Whey, Silicon dioxide, Passiflora extract, Chamomile extract, Kava Kava extract, Magnesium stearate.

缬草萃取物,天然风味,淀粉,硬脂酸,乾燥内脏,乾燥乳清,矽 二氧化物 ,西番莲萃取物,春黄菊萃取物,卡瓦胡椒萃取物,硬脂酸镁。