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Homework Help: Generating dipole vector

  1. Mar 2, 2007 #1
    Hi all,

    I want to generate the dipole vector for a water molecule. I start by generating the dipole moment of the molecule by the formula

    \mu = \sum Q_a * R_ab

    but I dont know how to generate the dipole vector? Any help appreciated. Thanks in advance
  2. jcsd
  3. Mar 2, 2007 #2
    overall dipole moment should be the vector sum of individual dipole moments of molecules. if you know the dipole moments of H and O in water, add them by vector laws to get the vector sum
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