Q-Chem, Inc.
Q-Chem, Inc. is the developer of the Q-Chem quantum chemistry software package.
Last updated September 2, 2026
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Overview
Q-Chem, Inc. is a company that develops the Q-Chem quantum chemistry software, which enables quick, accurate predictions of structure, reactivities, properties, spectra, and more for molecules and materials. The company was established in 1993 and has released five major versions to date. Q-Chem is used in pharmaceuticals, materials science, biochemistry, and other fields.
History
Q-Chem, Inc. was established in 1993. There have been five major releases to date. The company is an open-teamware project, with source code open to a large group of developers (currently more than 100 individuals in 9 countries).
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