FCHK2PSI is UNIX utility program for PSI88.
It is supposed to be placed in /pub/chemistry/software/SOURCES/FORTRAN/psi88.

# @(#) fchk2psi: extracts molecular coordinates and MO coefficients 
#      from Gaussian formchekpoint file and creates input files for
#      the PSI88 package written by Prof. William Jorgensen and Dr.
#      Dan Severance at Yale University.
#      To get MO coefficients from Gaussian, specify FORMCHECK=ALL.
#

Dongchul Lim
Department of Chemistry, Yale University
lim@rani.chem.yale.edu