To use the portable version of GaussView 5:
Semichem (the makers of GaussView) offers significantly lower pricing for academic use compared to commercial licenses. download free gaussview 5 portable
A powerful, free, and open-source molecule editor and visualizer. It is widely used as an alternative for building molecules and viewing Gaussian output files. You can download it from the Avogadro official site . To use the portable version of GaussView 5:
Here is what those downloads actually contain: and vibrational modes.
: Ability to view molecular orbitals, electron densities, electrostatic potentials, and vibrational modes.