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11 November, 16:02

When a molecule absorbs IR electromagnetic energy, what are the vibrational modes affected

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  1. 11 November, 18:43
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    Stretching vibration, and

    Bending vibration (Rocking, wagging, Twisting and Scissoring)

    Explanation:

    Stretching vibration: this causes change in the length of a bond Bending vibration: this causes change in the angle between two bonds

    Bending vibration can occur as rocking, wagging, twisting and Scissoring vibration

    2a) Rocking vibration: this causes change in angle between group of the atoms

    2b) Wagging vibration: this causes change in angle between the plane of a group of atoms

    2c) Twisting vibration: this causes change in the angle between the planes of two groups of atoms.

    2d) Scissoring vibration: this causes the movement of two atoms toward and away from each other
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