[Wien] cohesive energy

[Stefaan Cottenier]

> After calculating total energy, I want to calculate cohesive energy.
> So now I need to find the ionization energy.
> 
> My question is, where are the data about atomic ionization potential
> or maybe there is a better way of calculating cohesive energy.

There is a faq on cohesive energy: 
http://www.wien2k.at/reg_user/faq/cohesive.html

Stefaan