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Thread: Sulphonamide group - water molecules with hydrogen bonds?

  1. #1 Sulphonamide group - water molecules with hydrogen bonds? 
    haiku
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    Default April 11th, 2010, 06:06 AM
    Hi, I'm doing an Open University course and I'm very confused about one question:

    I have to make a copy of the structure in the picture to show two water molecules bonded to it by hydrogen bonds: one through a hydrogen atom of a water molecule and the other through the oxygen atom of a water molecule.

    Where would the water molecules be bonded to on this sulphonamide group?

    http://i39.tinypic.com/ztdc74.jpg


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    drowsy turtle
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    April 11th, 2010, 09:37 AM
    There are some partially positive hydrogen atoms on the molecule (on the amine group and the amine portion of the sulphonamide group), which will form hydrogen bonds with the oxygen on a water molecule.

    There are also the partially negative oxygen atoms on the sulphonamide group, there hydrogen atoms in water molecules will form hydrogen bonds.


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    haiku
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    April 11th, 2010, 10:19 AM
    Brilliant thank you, so just to clarify, with this new picture have I put the hydrogen bonds in the right place?

    http://i43.tinypic.com/okd3b5.jpg
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    drowsy turtle
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    April 13th, 2010, 06:34 AM
    Yes, you have.
    "The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at or repair." ~ Douglas Adams
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