The molecular vibrational database for interpreting infrared and Raman spectra

3D molecular vibrations

You can see an animation of the vibration modes at each peak of the spectra. This help you to interpret infrared and Raman spectra.

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Web browser is only required to use. You can easily search molecules by its name, and check the vibrational spectra without login. Let's try!


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Trial 100 2 weeks
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Student 50 1 year


June 28th, 2022. Vibrational modes have been calculated for molecules in Chapter 8 of Infrared and Raman Spectroscopy (Peter J. Larkin).