n→g*i 跃迁（含杂原子) 8 Amax E nm nm H20 167 1480 CHgOCH3 184 2520 CHgOH 183 150 CH3NH2 215 600 CH3CI 173 200 (CH3)2NH 220 100 CH3Br 204 200 (CH3)3N 227 900 CH3l 258 365 n→σ* 跃迁（含杂原子） λmax nm ε λmax nm ε H2O 167 1480 CH3OCH3 184 2520 CH3OH 183 150 CH3NH2 215 600 CH3Cl 173 200 (CH3 )2NH 220 100 CH3Br 204 200 (CH3 )3N 227 900 CH3 I 258 365