Q-Chem, Inc. is a comprehensive ab initio quantum chemistry program to solve computational problems faster, more accurately and less expensively than ever before possible. Q-Chem's capabilities facilitate applications in pharmaceuticals, materials science, biochemistry and other fields. Q-Chem also provides users with the highest level of technical support. Q-Chem was established in 1993, and there have been five major releases to date.
Thousands of Q-Chem installations are in use worldwide. In addition, more than 55,000 licensed copies of Q-Chem have been sold as a tightly coupled interface to Wavefunction, Inc.'s Spartan graphical user interface. Citations of the Q-Chem papers topped 400 per year in 2016, and continue to increase (as reported by ISI Web of Science).
About Open Teamware
Q-Chem is an open-teamware project. The source code is open to a large group of developers (currently more than 100 individuals in 9 countries), who can check in features to appear in official releases as long as they do not violate the integrity of the code and are scientifically sound. To apply to become a developer, contact email@example.com. New developers will be asked to sign a non-disclosure agreement pledging to respect the intellectual property of other developers by protecting the code from unauthorized access.