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To the last check, whether you are safe in the regulation of point groups, it is to complete you now some examples completely independently. We present in the following three training steps the geometrical structure of some molecules to you. Please determine their point group. You find the solution in the table of the concluding remarks. Note please on a paper step number and the appropriate solutions. Check only then in the concluding remarks (step 145).
| Execute however these regulations really conscientiously and you do not believe that you already control that everything reliably. Only by a critical adjustment to itself is in the long run success in the scientific work possible. |
The last round starts with step 143
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