Trouble with negative frequencies


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Just Got Here
Many thanks,
this is working fine and all frequencies are now positive.

I have just a few questions concerning this adaption. How did you hit on that ? Are there some lines in the outputfile, which show excplicitly that one must adjust the grid ? If yes how do these output lines look like ?

What does the numerical frequency analysis of NWChem do different from the analytical? Was this a hint for this being a grid issue?

How did you specify the values for the elements that is: se 750 and cd 250 ?

How can I specify appropriate lebedev grid values fo other elements for example for Sn ?


And just for my common understanding: With your adaption we have changed the angular grid haven't we? Is it now bigger or smaller than before?
Does the grid for the radial integration remain unchanged ?

I am very grateful for your reply. Thank you in advance.