I am trying to salvage old data, and one of my output files is in Molden format.

  1. I tried downloading Molden at its homesite but the link does not seem to work.
  2. Is there another way to access Molden format files?

Thank you very much.


I am fairly sure Molden can be downloaded. However, programs like JMol, and Chemcraft are usually cross-compatiblr with molden.

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  • $\begingroup$ As far as I know, ChemCraft is not able to read molden files. I don't use JMol, so maybe that works. It would be best if you could support your claims with more data, and/ or links to documentation of the programs. $\endgroup$ – Martin - マーチン Nov 14 '16 at 8:29
  • $\begingroup$ Even though ChemCraft does not open .molden files, it is able to open .wfn files. So if using ChemCraft (or any other .wfn-compatible software that can't read .molden files) is imperative, my answer might be helpful. $\endgroup$ – Felipe S. S. Schneider Jan 20 '17 at 19:11

In case you're OK with converting, Molden2AIM may be a good alternative. It is able to convert .molden files into .wfn files which are easier to handle in my opinion (the software actually does a bit more than just that, such as generating .47 files for NBO analysis).

If your .molden files were generated by ORCA, you may also try an automated script that handles the details of using Molden2AIM for you.

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Here you download Molden, took me approximatly 30 seconds..

gOpenMol would be an alternative, it reads xyz files aswell as alot of others

•  ADF, Amsterdam Density Functional output  
•  CHA
•  CML
•  Chem3D binary file 
•   DL_Poly CONFIG coordinate file format. 
•   Gaussian formatted checkpoint file.  
•   Gromos96    
•   Gromacs coordinate file format. 
•   HyperChem.        
•   Insight (car files).  
•   Jaguar  coordinates from a Jaguar output log file. 
•   Mol2.    
•   Mumod.    
•   OpenMol (center binary file).  
•   PDB (Brookhaven Protein Data Bank format).  
•   Tinker coordinate file. 
•   Spartan binary file (plugin must be enabled). 
•   Xmol single and multi xyz coordinate set file.  
•   XYZ general xyz coordinate file.  
•   YASP.   


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  • $\begingroup$ That is the same as my comment and it does not even attempt to answer the question. For the time being, just pretend that molden simply does not exist. $\endgroup$ – Martin - マーチン Nov 14 '16 at 8:26
  • $\begingroup$ @Martin-マーチン It does.. I just downloaded it. But I added an alternative $\endgroup$ – Fl.pf. Nov 14 '16 at 9:12
  • $\begingroup$ gOpenMol is a deprecated program which is not able to read molden files. $\endgroup$ – Martin - マーチン Nov 14 '16 at 10:07
  • $\begingroup$ @Martin-マーチン It reads xyz files. Molden reads xyz files. gOpenMol reads Molden files. $\endgroup$ – Fl.pf. Nov 16 '16 at 8:52
  • 3
    $\begingroup$ The question is not about xyz files but about molden files. These are very different, see cmbi.ru.nl/molden/molden_format.html $\endgroup$ – Martin - マーチン Nov 16 '16 at 8:56

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