TURBOMOLE Users Forum

TURBOMOLE Modules => Treatment of Solvation Effects with COSMO => Topic started by: lor5 on April 11, 2021, 12:24:53 PM

Title: Parameterisation in COSMOtherm
Post by: lor5 on April 11, 2021, 12:24:53 PM
Hi,

I just created a .cosmo file of my molecule using B97-3c/def2-mTZVP QM level using TMoleX.

Given that these settings are not in line with the recommended / given parameterisations of COSMOtherm, would it be possible to create a .ctd file with my parameters please? What can be done in such cases?

Thanks!

Title: Re: Parameterisation in COSMOtherm
Post by: uwe on April 13, 2021, 04:58:54 PM
Hello,

COSMOtherm parametrization is done by the COSMOtherm developers, so you could contact the support of this software.

But the quality of COSMO-RS will most likely not be very different to the default parametrizations COSMOtherm provides.
What property are you interested in? For example for reactions it is recommended to use higher-level methods (of whatever kind) for the gas phase and COSMO-RS just to close the thermodynamic cycle (from gas phase to solution and back). See e.g. https://pubs.acs.org/doi/10.1021/acs.joc.1c00119
Title: Re: Parameterisation in COSMOtherm
Post by: lor5 on April 14, 2021, 08:25:51 PM
Hi,

Thanks for the information.

My objectives are mainly solubility and co-crystal prediction. I used B97-3c/def2-mTZVP QM level because I need to repeat this process on a relative large number of molecules.