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QTAim Critical Points

The new site looks great!
P.S. Did not know that Avogadro2 is capable of making critical point pictures. How to do that?

The default builds on GitHub enable the QTAIM extension:

Any of these commands will pick a .wfn file and perform the analysis. By default the QTAIM display type should activate (e.g., for \ce{B2H6})

I think this refers to the point group of the molecule, such as C2v for the water molecule.

This is a different kind of analysis. Avogadro 2 does have full point group symmetry analysis (e.g. New symmetry features in 1.94)

QTAIM is Bader’s Atoms-In-Molecules analysis. It looks at the quantum chemical electron density to find bonding interactions, lone pairs, etc.

The code is pretty much identical to the v1 version: Using Atoms-In-Molecules (Bader) Analysis - QTAIM and WFN - Avogadro