Tank you so much for you'r answer. but I can't do it. I think it's related to the memory “ompstacksize” . Can I send you my file to check it?
Yes, you can send your file to my E-mail box (see first page of multiwfn manual), I will check it. Please also clearly indicate the version and platform of Multiwfn you are currently using.
]]>Since according to my test, Multiwfn can normally load the .molden file generated by Demon2k, and .molden file carries more information (basis function information and virtual MOs) than .wfn file, making more functions of Multiwfn are available, I strongly suggest you use .molden file instead.
(If you really need .wfn file due to some special reasons, you can use Multiwfn load .molden file, and then choose subfunction 2 of main function 100 to export the loaded wavefunction to .wfn file)
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