Its name is derived from Molecular Orbital PACkage , and it is also a pun on the Mopac Expressway that runs around Austin .
MOPAC was largely written by Michael Dewar 's research group at the University of Texas at Austin .
MOPAC 's name is derived MOPAC     PACkage , and it is also a pun on the Mopac Expressway that runs around Austin .
MOPAC was largely written by Michael Dewar 's research group at the University of Texas at Austin .