|  Molecule Types Vibrational Structure Vibrational Energy Levels and
              Franck-Condon Factors | <Prev Next> | 
One of these items may be present for each nucleus in the
      molecule under each electronic
        state. The number is controlled by the nNuclei setting at the
      molecule level. If the l matrix is not being used to
      calculate Franck-Condon factors these are not required.
    
| Mass | Mass of nucleus / amu | 
| x | Equilibrium x co-ordinate / Å | 
| y | Equilibrium y co-ordinate / Å | 
| z | Equilibrium z co-ordinate / Å | 
Right click on the item in the constants
        window for the following operations in addition to the
      standard ones:
    
| Set Exact Mass | Try to set exact mass from mass (if not zero) and name |