分子的振动形式分类:
1.伸缩振动(stretching vibration)
对称伸缩振动(symmetrical stretching vibration,s)
反对称伸缩振动(asymmetrical stretching vibration,as)
2.变形或弯曲振动(deformation vibration)
面内变形振动(in plane bending vibration, )剪式振动(scissoring vibration, )
面内摇摆振动(rocking vibration,)
面外变形振动(out-of-plane bending vibration,)
面外摇摆振动(wagging vibration,)
扭曲变形掘动(twisting vibration,)
红外光谱的吸收强度定性常用摩尔消光系数ε划分,等级的表示方法如下:
ε>100,最强(v s)
20<ε<100,强峰(s)
10<ε<20,中强峰(m)
1< ε<10,弱峰(w)
ε<1,极弱,(v w)
表示方法:如CH3 νC-H 2960cm-1 (S)
[ Last edited by qingyy on 2010-7-20 at 17:50 ],
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