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27 February, 01:33

Several methanol (CH3OH) dimers are drawn below, and several proposed intermolecular bonding interactions are highlighted in green. If a highlighted interaction is a valid hydrogen bond, leave it unaltered. If the interaction is not a valid hydrogen bond, delete the green bond to yield two non-interacting alcohol molecules. If needed, the module may be restored to its original state by clicking on the red over-under arrows.

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  1. 27 February, 03:42
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    Posible dimers structures: B) and D) (Figure 1)

    Explanation:

    The correct dimer structures are the ones that have a right intermolecular bonding interacction. In this case we will have hydrogen bonding. This type of interaction is due to the negative polarization in the oxygen and the positive polarization in the hydrogen. (Figure 2)

    So, a correct dimer structure is posible if we have an interaction from the negative part (oxygen) to the positive part (hydrogen). The only structures that have this type of interactions are B and D.
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