Figure shows the computed binding energies across all of our calculation schemes for a single norspermine molecule attaching to the framework. A true ground-truth prediction would have the blue bar being the highest (most negative), which is true across all methods except regular PBE. The relatively large numbers compared to m2m and other diamines can be attributed to the fact that, for the most part, two bonds are forming: each primary amine is attaching to a Zn atom.