SIESTA has implemented various method to calculate the charges. There are:
- *Mulliken* (section 6.15.1 of the manual for version siesta-trunk-462)
- *Voronoi and Hirshfeld* (section 6.15.2 of the manual)

You should calculate the charges for both systems using the same parameters
(type of pseudo, basis set, mesh cutoff, etc.)




[]'s,

@mps

On Fri, Aug 14, 2015 at 6:02 AM, Radhika Narayanan <
[email protected]> wrote:

> Dear all,
>
> Could anyone suggest how to compare the charge distribution on an isolated
> molecule and a molecule in a crystal using the Siesta software?
>
> Thanks
> Radhika
>
> --
> Research fellow,
> Theoretical and Computational Chemistry Lab,
> Department of Chemistry,
> Tokyo Metropolitan University,
> 1-1 Minami-Osawa, Hachioji-shi, Tokyo,Japan,192-0397
> E-mail:[email protected]
>

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