Beloit College > Chemistry > Resources > Software

Download these programs to run on your own computer.

Right click or CTRL-click on the link. Drag down to something like "Save Link Target as..." or "Save this Link as..." or "Download Link to Disk" or "Download Linked File As..." or "Saved Linked File to Desktop...".

Each program has a "Check for updates" menu item that can tell you whether you have the latest version.

For Windows, the Windows Universal Runtime is required which is installed by Windows Update. If you get a message about a missing dll, run Windows Update.

Since the Mac OSX applications are not signed, you will need to control-click the app icon and choose Open from the context menu the first time you run it.


Draw logarithmic concentration, distribution, and titration plots for acid/base, solubility, metal/ligand and redox equilibria, as well as cyclic voltammograms and Pourbaix diagrams.

Download Kplot: Mac | Windows 64 | Windows 32 | Linux | Raspberry Pi

G. C. Lisensky, © 2007-2018.

Mass Spectroscopy Tables

Calculate combinations of C, H, N, and O for a unit mass, exact mass of that composition, % relative intensity of M+1 and M+2 peaks, and the number of rings and double bonds.

Download Mass: Mac | Windows | Linux

G. C. Lisensky, © 2003-2018.

Hydrogen Atom Wave Functions

Draw radial distribution and angular functions for hydrogen-like atomic orbitals.

Download Radial: Mac | Windows | Linux

G. C. Lisensky, © 2007-2018.

Space Group Diagrams

Draw space group diagrams by identifying symmetry elements from the International Tables for X-ray Crystallography for monoclinic and orthorhombic space groups. You may display the symmetry elements, the equivalent positions, or both.

Download Spacegroup: Mac | Windows | Linux

G. C. Lisensky, © 2007-2018.

iORTEP - A Crystallographic Plotting Program

To plot a crystal structure you need to enter values for
-the unit cell dimensions (axes in Ångstroms, angles in degrees),
-the space group symmetry (equivalent positions and centering),
-a unique name, fractional coordinates, and thermal parameters for each atom.

Download ORTEP: Mac | Windows | Linux | Sample data

Fortran version by Carroll K. Johnson, "ORTEP-II: A FORTRAN Thermal-Ellipsoid Plot Program for Crystal Structure Illustrations," Oak Ridge National Laboratory Report ORNL-5138, 1976. Interactive version by G. C. Lisensky, © 2008-2018.

GradeReader - An excel formatting program

This program takes a tab-delimited Excel TEXT file where the first row is column headings and subsequent rows contain a name and grades for each person, and produces a page for each person with their assignment grades.

Download GradeReader: Mac | Windows

G. C. Lisensky, © 2003-2018.

Last updated July 27, 2018 by George Lisensky