As seen in Table , the squared Frobenius norm of the 2 Γ is constant despite its changing eigenvalues 2 γ. The change of the cumulant is dictated by the decrease in the 1 γ values, given their inverse relationship. Meanwhile, the triplet, here constrained by the minimal basis into a simple form for all geometries, formally never registers any signal across its spectrum because of the constrained nature of 1 γ. Beyond lacking size-extensivity, the 2 Γ squared Frobenius norm is incapable of capturing all the correlation reflected in the eigenvalues, while the 2 ∆ norm and trace incorporate this in a straightforward way. We remark that larger triple-and quadrupleζ basis sets show similar trends, with only minor numerical differences in the metrics.