Multiwfn forum

Hi,

First, I want to say that I work at a computational facility at UC-Berkeley and several of our users use Multiwfn; it's a great program, and thank you for creating it.

We came across a problem with using .wfn files produced by q-chem.  I've isolated one example that works and one that doesn't, and I've determined that the problem is in parsing the 2nd line of the .wfn file.  Here are the 2nd lines of each of the files:

GAUSSIAN             34 MOL ORBITALS    176 PRIMITIVES        4 NUCLEI
GAUSSIAN             88 MOL ORBITALS    1410 PRIMITIVES       40 NUCLEI

I observed that the number of primitives begins at exactly the same character in each case.  I tried deleting one space to the left of the 1410 in the 2nd file, so that now all the words in the line are exactly aligned, and now both files are correctly read in to multiwfn.  So evidently multiwfn is expecting a fixed width input format for the components of this line.  I'm posting this in the forum so that this can either be fixed in multiwfn, or if you think the problem is instead that q-chem should be writing this line in fixed width format, let me know, and I'll pass that information on to q-chem.

thanks