Organic molecule plus dication


Click here for full thread
Clicked A Few Times
Hi everybody,

not sure whether this is the right place for this question, but I'm trying anyways:
We want to look at interactions between a small organic molecule and a dication, let's say Mg2+. We start at a molecule-dication distance of about 1nm. Not too unexpected, when I run this in DFT, I get a distribution of the 2+ charges about 1 on the molecule and 1 on the "di"cation. So we cannot get the asymptotics right - which is of course problematic if we think about complex formation/dissociation.
Any idea what to do in this case?

Cheers.
B