示例 已知某未知物的分子式为CH7NO,测得其红外吸收光谱如图14-23,试 推断其结构式? λ(m 2.5 91011121314516 V=CH 3 3300 Vcc(芳环)1597,1495,1445 VNH 3270 WH1533 c-1323 % 0 -H3030 'cc2100 10H 763,694(双峰 c=-01638 B-c#1268 4000360032002800240020001900180017001600150014001300120011001000900800700600 o fcm-I) C,H,NC的红外吸收光谱示例 3270 NH 1638 C=O 1533 NH 3300 CH 2100 CC 1268 CH 3030 −H C=(芳环) C 1597 ,1495 ,1445 −H 763 ,694(双峰) 1323 C−N