“…Chalcogen bonds have been defined as the attractive NCIs between an electrophilic region related to a covalent-bonded group VI atom (O, S, Se, Te) and a nucleophilic region within the same or another molecular entity [ 29 ]. In recent years, ChBs have garnered considerable attention from theoreticians and experimentalists owing to their important contributions to crystal engineering [ 30 , 31 ], molecular recognition [ 17 , 32 ], organocatalysis [ 33 , 34 ], drug design [ 6 , 35 ], materials science [ 36 , 37 ], and biological systems [ 13 , 38 , 39 ]. ChBs belong not only to a subclass of σ–hole interactions but also to a subclass of π–hole interactions [ 40 , 41 ].…”