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Lecture 4

Lecture 4. We have a character table What can we say about IR and Raman spectra?. Water molecule. C 2v. General case: water molecule movement. 3 atoms. 9 coordinates. Matrix 9 ×9. C 2v. 2. 1. Water molecule: m = 0; m yz =1 m 0 =1. Active in Raman. Active in IR. Same symmetry:.

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Lecture 4

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  1. Lecture 4 We have a character table What can we say about IR and Raman spectra?

  2. Water molecule C2v

  3. General case: water molecule movement 3 atoms 9 coordinates Matrix 9×9

  4. C2v

  5. 2 1 Water molecule: m = 0; myz =1 m0 =1

  6. Active in Raman Active in IR

  7. Same symmetry: Flat: C2h

  8. CH4 m3=1, m0=1

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