Relative stabilities c CHCCH CH3CHCH3 CH3CH2CH2· ropyl radical P tert-Butyl radical Isopropyl radical 3° radical radica 2 radical Tertiary radical> Secondary radical>Primary radical Methyl radical 叔自由基 仲自由基 伯自由基 甲基自由基 radical)2° radical>1° radical>:CRelative stabilities CH3 CH2 CH2 Propyl radical 1 o radical CH3 CHCH3 Isopropyl radical 2 o radical CHCCH3 CH3 tert-Butyl radical 3 o radical Tertiary radical 叔 自 由 基 Secondary radical 仲自由基 Primary radical 伯自由基 Methyl radical 甲基自由基 3 o radical 2 o radical 1 o radical CH3