Difference between revisions of "Dipole moment"
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*[http://dx.doi.org/10.1080/00268976.2015.1005191 Carlos Vega "Water: one molecule, two surfaces, one mistake" Molecular Physics
*[http://dx.doi.org/10.1080/00268976.2015.1005191 Carlos Vega "Water: one molecule, two surfaces, one mistake" Molecular Physics ''''(2015)]
Latest revision as of 12:09, 22 May 2015
The electric dipole moment is a measure of polarity. It is the second term in a multipole expansion of a field (the first one being the monopole, or Coulombic, term.) Its definition, for a system of point charges, is given by
For molecular systems, it is customarily given in units of Debyes, after the physicist Peter J. W. Debye. In SI units, D equals approximately Coulomb-meter (exactly C m/s divided by , the speed of light in vacuum). Conversely, 1 C m = D. This is unit is convenient for molecular systems since 1ÅD.
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