Alkene C—H Stretching Vibrations

Alkene C-H Stretching Vibrations Alkene C-H Deformation Vibrations Alkene Skeletal Vibrations... 

Alkene (olefinic) structures introduce several new modes of vibration into a hydrocarbon molecule a C=C stretching vibration, C—H stretching vibrations in which the carbon atom is present in the alkene linkage, and in-plane and out-of-plane bending of the alkene C—H bond. The spectrum of Figure 3.10 is that of a typical terminal alkene. 

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