Did you miss Q-Chem's latest webinar, "Orbital Optimized Density Functional Theory for Electronic Excited States," presented by Diptarka Hait of University of California at Berkeley? You can now… Read More

Q-Chem is pleased to announce the release of Q-Chem 5.4.2! This provides many improvements to our most recent release, including some new features. A comprehensive list of improvements, resolved… Read More

Happy Holidays!  During our December holiday sales event, a 10% discount will be applied to all license orders and license upgrades placed by customers directly with Q-Chem before the end of… Read More

Did you miss our latest webinar, "Restricted Active Space CI family of methods in Q-Chem," presented by Dr. David Casanova of Donostia International Physics Center (DICP) on November 24th?  The… Read More

We are now accepting nomination submissions for the 2022 Nick Besley Award. This award recognizes excellence in the development or application of new methods for computational spectroscopy in the… Read More