On the structure factor of dipolar molecular fluids

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Abstract
The site-site Ornstein-Zernike (SSOZ) equation with the hypernetted chain (HNC) closure is shown to effectively decouple for a class of model dipolar molecules. This means that the dipole-dipole interactions have little or no effect on the structure factor, although they significantly alter the short range site-site distribution functions. This result highlights a weakness in the practice of assessing the validity of a molecular model solely by comparing an experimental and theoretical structure factor.