3.1 QTAIM topologies and intermolecular geometries
The QTAIM molecular graphs, showing the possibility of various bonding
interactions between atoms in the complex anions examined are given in
Fig. 1. Evidence of these interactions come from the presence of
well-defined bond paths and (3,–1) bcps between the bonded atomic
basins in each binary complex. Such topological signatures are expected
when the constituent atoms in the monomers are engaged in the formation
of either covalent or noncovalent interactions. The results are
consistent with the IUPAC recommendation for identifying the presence of
chalcogen bonding.77