Bond O-H N一H C-H ≡C-H C-H C≡N C≡C C=C 1620~1680 C=0 1630~1780 Aromatic ring 1500and1650~1550Organic Chemistry Organic Chemistry Xiamen Xiamen University University 1630 ~ 1780 3590 ~ 3650 Frequency Range (cm-1 Bond ) Aromatic ring 1500 and 1650 ~ 1550 1620 ~ 1680 2100 ~2200 2220 ~ 2260 3010 ~ 3095 ~ 3300 2853 ~ 2962 3300 ~ 3500 O H C O C C C C C N C H C H N H C H