The CRUNCH Software

The CRUNCH (Computational Resource for Understanding Chemistry) has been written originally in Fortran by Gallup (61), and recently translated into 

C (62). This program can perform multiconfiguration VB calculations with fixed orbitals, plus a number of MO-based calculations like RHF, ROHF, UHF (followed by MP2), Orthogonal Cl, and MCSCF. 

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