Angewandte Chemie, EarlyView.
A spodium bond (SpB) is defined as the net attractive interaction between a Group 12 element acting as a Lewis acid and electron‐rich atoms (Lewis bases or anions). These noncovalent interactions involve antibonding Sp–ligand orbitals and are markedly different from coordination bonds. Evidence for SpBs is provided by ab initio calculations and examining solid‐state structures.
The term spodium (Sp) bond is proposed to refer to a net attractive interaction between any element of Group 12 and electron‐rich atoms (Lewis bases or anions). These noncovalent interactions are markedly different from coordination bonds (antibonding Sp–ligand orbital involved). Evidence is provided for the existence of this interaction by calculations at the RI‐MP2/aug‐cc‐pVTZ level of theory, atoms‐in‐molecules, and natural bond orbital analyses and by examining solid‐state structures in the Cambridge Structure Database.