Q-Chem 4.1 Release Download
Last update 7/15/2013
Q-Chem 4.1 Package Distribution
Two ways to install Q-Chem 4.1
1) download the standard distribution by selecting a package above and untar it.
tar xvf qc4101.tar
2) download the universal online installer (recommended) using wget.
wget -N http://www.q-chem.com/download/qcinstall/qcinstall.sh
chmod +x qcinstall.sh
Run the installer qcinstall.sh and follow the onscreen instruction
After a successful installation you need to wait to receive license file by email, and save it as
Q-Chem Package Update and Maintenance
a) to update the installed Q-Chem to the latest distribution, run
[Package maintenance utility qcupdate.sh is the new added feature in 4.1 release. To upgrade pre-4.1 Q-Chem installation please download and run standard installer qcinstall.sh. ]
b) to re-generate and sumit license data, run
c) to receive regular updates you can use Linux cron utility and add the line below as the cron command. Please consult your system administrator for questions about using cron.
$QC/qcupdate.sh > $QC/qcupdate.log
Send us your feedback regarding website content, functionality or submit an enhancement request.