Recent content by alphabetagamm

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    Finding band origin of electronic transition and wavenumber of vibrational mode

    John. (1) I am indeed an undergraduate :smile: 2a) C2v point group with 1A1 ground state and 1A2 excited state resulting from promotion of b2 oxygen lone pair electron to \pi* of C=O bond. The reducible representation on the vibrations of both states are \tauvib= 3A1 + 2B2 + B1 As fro...
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    Finding band origin of electronic transition and wavenumber of vibrational mode

    Homework Statement The first vibrational band in the absorption spectrum of H2CO is at 28871 cm-1. The first two bands in the emission spectrum (from v'=0 level) lie at 27021 cm-1 and 24687 cm-1. Explain these observations. Determine the band origin of the electronic transition and the...