Q-Chem can output a file suitable for analysis with the Atoms in Molecules package (AIMPAC). The source for AIMPAC can be freely downloaded from the web site:
Users should check this site for further information about installing and running AIMPAC. The AIMPAC input file is created by specifying a filename for the WRITE_WFN $rem.
Specifies whether or not a wfn file is created, which is suitable for use with AIMPAC. Note that the output to this file is currently limited to orbitals, which is the highest angular momentum implemented in AIMPAC.
No output file is created.
Specifies the output file name. The suffix .wfn will
be appended to this name.