Valence bond codes

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VB computer programs for modern valence bond calculations:-

  • CRUNCH is by Gordon A. Gallup and his group.[1]
  • VB2000 version 2.0 by Jiabo Li, Brian Duke and Roy McWeeny allows an efficient use of Group Function theory, whereby different groups can be handled by different methods (VB or Hartree-Fock). General VB, spin-coupled VB and CASVB calculations are possible.[2]
  • XMVB (previously known as XIAMEN). This allows several VB methods, including breathing orbital VB.[3]

Note that several other programs, as well as some of those above, can do Goddard's Generalized Valence Bond (GVB) methods. GAMESS (US) does this either without the VB2000 interface or with it.

[edit] References

  1. ^ CRUNCH
  2. ^ VB2000
  3. ^ Wiley Software News & Updates Review of XMVB