官能團
官能團是表現有機化合物性質的原子或原子團。
–I排序：[1]
- -N+F3 > -O+R2 > -N+R3 > -S+R2 > -N+H3 > -NO2 > -SO3H > -CN > -CHO > -C(=O)R > -COOH > -COOR > -CONH2 > -X > -OH ~ -OR > -C≡CH > -Ph > -C=C > -H
- -X：-F > -Cl > -Br > -I ( > -At > -Ts[2])
- -NO2 > -SF5 > -COOH > -CF3 > -H > -CH3[3]
＋I排序：
- -O− > -COO− > -tBu > -iPr > -C2H5 > -CH3 > -C-T > -C-D > -C-H
- -nBu > -nPr > -C2H5
- ↑ What is the correct order for Electron withdrawing inductive effect for the -I groups?
- ↑ 推測
- ↑ Sheppard, William A. The Electrical Effect of the Sulfur Pentafluoride Group. Journal of the American Chemical Society. 2002, 84 (16): 3072–3076. ISSN 0002-7863. doi:10.1021/ja00875a007.