file extension GAM

MacMolPlt is:

• A modern graphics program for plotting 3-D molecular structures and normal modes (vibrations). Modern means:
  
  • Mouse driven interface for real-time rotation and translation.
    
  • copy and paste functionality for interfacing to other programs such as word processors or other graphics programs (like ChemDraw).
    
  • simple printing to color or black and white printers (publication quality).
    
  • multiple files open at once.
    
• It reads a variety of file formats including any GAMESS input, log or IRC file directly to create animations of IRC's, DRC's, and optimizations. You may also import a $VEC group from any file (such as a GAMESS .DAT file). In addition xMol XYZ files, MolDen format files and Chemical Markup Language (CML) files are supported. Also some PDB file support and MDL MolFile support is included.
  
• Molecular point group symmetry is supported.
• You may also paste GAMESS and Gaussian-92 style cartesian coordinates directly into the program.
  
• Animation of Normal Modes.
  
• Animation of IRC's, and DRC's including orbitals.
  
• Simple Energy Plots (including geometrical parameters).
• Simple frequency line graph of frequency versus infrared or Raman intensity.
  
• Append multiple GAMESS files together to create a single animation.
  
• Build or modify molecules using the graphical molecule builder.
  • Quickly build realistic 3D structures.
  • rotate selected atoms about bonds, change bond or dihedral angles.
  • translate and rotate selected subgroups.
• Build molecules from scratch using cartesian or internal coordinates
  
• 2D orbital, total electron density contour map display
• 3D molecular orbital, total electron density display
• density difference maps
• Molecular Electrostatic Potential Maps
  
• Simple GAMESS input (.inp) builder
  
• 3D color display with lighting and shading using OpenGL under MacOS X.