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Homework Help: Symmetry arguments formaldehyde

  1. Feb 29, 2012 #1
    1. The problem statement, all variables and given/known data
    http://www.imagedump.nl/img841/1016/35naamloos.jpg [Broken]

    Consider the formaldehyde molecule (A). The 2Pz orbitals of C and O are together a pi molecular orbital (MO, as drawned in (B). De pi* MO is marked in (C).
    Show, with the help of symmetry arguments, that die transition dipole moment in formaldehyde of pi-pi* transition is polarised through the C=O axis. (Hint: expand the dipole operator mu in cartesian coordinates mu of x, mu of y and mu of z (MUx, MUy, MUz) and mirror the transition dipole moment in the xy, xz and yz plane).

    2. Relevant equations



    3. The attempt at a solution
    How to start? (Not the answer, but a clue to the answer).

    Thnx!
     
    Last edited by a moderator: May 5, 2017
  2. jcsd
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