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    What is a Dipole ?

    can you please explain an induced dipole-dipole interaction ?

    can you please explain a permanent dipole-dipole ?

    can you please explain hydrogen bonding ?

    thanks.
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    (Original post by chem.man)
    What is a Dipole ?

    can you please explain an induced dipole-dipole interaction ?

    can you please explain a permanent dipole-dipole ?

    can you please explain hydrogen bonding ?

    thanks.
    Hi,

    ChemGuide is very useful for this sort of thing. If you look at these two pages it should help you;

    http://www.chemguide.co.uk/atoms/bonding/vdw.html
    http://www.chemguide.co.uk/atoms/bonding/hbond.html#top

    Basically a dipole is where one end of a molecule is slightly negative and the other is slightly positive - in an induced dipole this is because of the random movement of electrons, in a temporary dipole it is because the electrons in one molecule are repelled by those in another molecule, and in a permanent dipole it is because one element in the bond may be more electronegative so the electron density is more concentrated on it - so it does not end up with a full charge (like Na+ Cl-) but ends up with a delta charge - so a small negative or small positive charge.

    These dipoles work like magnets - a positive end attracts a negative end, and this means that there are van der Waals forces between the molecules - so molecules like chlorine have slight dipole interactions.
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    anyone help ?
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    (Original post by ThatPerson2)
    Hi,

    ChemGuide is very useful for this sort of thing. If you look at these two pages it should help you;

    http://www.chemguide.co.uk/atoms/bonding/vdw.html
    http://www.chemguide.co.uk/atoms/bonding/hbond.html#top

    Basically a dipole is where one end of a molecule is slightly negative and the other is slightly positive - in an induced dipole this is because of the random movement of electrons, in a temporary dipole it is because the electrons in one molecule are repelled by those in another molecule, and in a permanent dipole it is because one element in the bond may be more electronegative so the electron density is more concentrated on it - so it does not end up with a full charge (like Na+ Cl-) but ends up with a delta charge - so a small negative or small positive charge.

    These dipoles work like magnets - a positive end attracts a negative end, and this means that there are van der Waals forces between the molecules - so molecules like chlorine have slight dipole interactions.
    thanks so much
    Really appreciate it
 
 
 
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