CCL:G: Gibb's free energy



It's easy if you use one of the multi-step methods (G3, CBS-Q, etc.): a Gibbs free energy function (in hartrees) is part of the final output.
 
Otherwise, thermodynamic data can be obtained from a freq calculation; the entropy and the thermal energy are in the section after the frequencies table. 
 

--David Shobe, Ph.D., M.L.S.
Süd-Chemie, Inc.
phone (502) 634-7409
fax (502) 634-7724

Don't bother flaming me: I'm behind a firewall.



From: owner-chemistry:-:ccl.net [mailto:owner-chemistry:-:ccl.net]
Sent: Sunday, October 30, 2005 6:01 AM
To: Shobe, David
Subject: CCL:G: Gibb's free energy

Hi,

How to calculate the Gibb's free energy for a molecule using gaussian software ?

Sincerely,


Appel audio GRATUIT partout dans le monde avec le nouveau Yahoo! Messenger
Téléchargez le ici !
This e-mail message may contain confidential and / or privileged information. If you are not an addressee or otherwise authorized to receive this message, you should not use, copy, disclose or take any action based on this e-mail or any information contained in the message. If you have received this material in error, please advise the sender immediately by reply e-mail and delete this message.
Thank you.