Empire (program)

Empire is a computer software for semiempirical Molecular Orbital calculations designed to run in parallel on multi-core desktop computers and on massively parallel supercomputers. Empire is used to calculate chemical structures and is able to calculate large systems such as proteins .{{cite web|title=EMPIRE|url=http://www.ceposinsilico.de/products/empire.htm|publisher=www.ceposinsilico.de|accessdate=7 April 2014}}