ortho effect
英
美 [ˈɔrˌθoʊ ɪˈfekt]
邻位效应
双语例句
- In the catalyst systems bearing mono ( imino) pyridine ligand, it seems that the substitute attached to the ortho position of phenyl ring has a beneficial influence on the activity while substitute group in the para position has a negative effect.
此外，在含有单亚胺吡啶配体的催化剂体系中，亚胺基苯环上邻位取代基对于催化活性有利，对位取代基则会抑制催化剂活性。 - The base peak at m/ z 191 is formed with the loss of a neutral molecule via the ortho effect;
基峰m/z191是由M~+通过邻位效应失去HN（CH3）2中性分子形成的； - We also found that the ortho ester functional groups have an accelerating effect for the reaction to proceed and the steric hindrance effect of ester is not apparent.
研究还发现邻位酯基对反应的进行有明显的促进作用，而酯基的空间位阻效应对反应影响不明显。