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ÎÊÌ⣺778cm-1ºÍ705cm-1ÊDZ½»·µÄÃæÍâÍäÇúÕñ¶¯ÎüÊշ壬
3055cm-1ÊDZ½»·µÄÉìËõÕñ¶¯ÎüÊշ壬
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´ð°¸1£ºThe out-of-plane bending vibration absorbation peak of benzene:778cm,705cm
The stretching vibration absorbation peak of benzene£º3055cm
The skeletal vibration absorbation peak of benzene£º1492cm,1456cm

´ð°¸2£º1.  778cm-1 and 705cm-1 are the out-of-plane bending vibration absorbation peak  of benzene ring.
2.  3055cm-1is the companding vibration absorbation peak of benzene ring.
3.  1492 cm-1 and 1456cm-1 are the skeletal vibration absorbation peak of benzene ring.

[ Last edited by zap65535 on 2010-1-17 at 00:08 ]
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For example, if there is no band in the 1850¨C1600 cm−1 region, it is most unlikely that a carbonyl group is present.
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