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molden to Casino input converter
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molden format file to Casino file format converter.

This python script is used to create file which used for input in the CASINO program. The file contains molecular geometry and molecular orbitals expanded in a Gaussian basis set.

In general any file that confirms MOLDEN specification can be used, but different quantum chemistry code not always fully comply with the required specifications, in such cases, the script corrects these discrepancies.

The script supports the Molden file generated by the following programs:

  2. PSI4
  3. CFOUR
  4. ORCA
  8. QCHEM

Specific features

Only CFOUR 2.1 version supports proper ordering of g-orbitals in MOLDEN file so recommended for use.

Only in case of NWCHEM 6.8.1 version able to generate MOLDEN file without a patch. molden_norm none is valid option to generate molden2qmc compatible format. I want to pay attention to that only spherical-harmonic (5 d, 7 f, 9 g, ...) angular functions supported.

In case of QChem also supported only spherical-harmonic angular functions. You should checkout PURECART variable which handle the angular form of the basis functions.

Latest versions tested:

  • TURBOMOLE - V6.6
  • Psi4 - 1.1 release
  • CFOUR - 2.1
  • ORCA - Version 4.2.0
  • Dalton - 2018.2
  • Molpro - Version 2012.1
  • NWChem - 6.8.1
  • Q-Chem - 4.4
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