图示 30x0250020001500 1000800 667 em cH与GHCH与 725 (1379) 722 2)680 0470) (H -CH VC=N 2247cm (CH) CH(CHa)oCN ”0T -的12 5) 445 224 CH 3090cm CH(CH)CH=CH> v-cH 1639cm 8 6.10 101 9 990cm 09 01639 10 Y-cH, 990 909) 568900,214 Y-cH 909cm m 形一是、正一游及腔一烯山的红外吸牧光语 back图示 back 1 2247 −   C N cm 1 3090 2 − = cm as  CH 1 1639 2 − = cm s  CH 1 990 2 − =  CH cm1 909 − =  CH cm