We examined the La-Si bond topologies of 1-La using the Quantum Theory of Atoms in Molecules (QTAIM) and found three essentially identical La-Si 3,-1-bond critical points. These exhibit ,  the modest  values here reflect that the silanide ligands each bind to the La center in a slightly skewed manner, which is apparent in the NBO and NLMO visualizations of 1-La (Figures and), and thus their bond ellipticities are not ideal.