示例 4000360032002800240200018001600140012001000800600400 80 (伯)弱 (双) NH WNH2CH3CH2 CHa CH2NH2 8CH3 vg(单 (仲)中强 (CH, CH2 CH2 CH,)2NH C-N 0-H>3000 CH (强单) twcc16001500(双 VC-N 40003600320028002400200018001600l40012001000800600400 o(em") 正丁胺、正二丁胺及N甲基苯胺的红外吸收光谱示例 N−H(双) N−H(单) N−H(强单) −H 3000 C−(仲)中强 N C−(伯)弱 N C=C 1600,1500(双)