LiBF<sub>4</sub>‐Induced Rearrangement and Desymmetrization of a Palladium‐Ligand Assembly
Sylvain Sudan, Farzaneh Fadaei‐Tirani, Rosario Scopelliti, Kristina E. Ebbert, Guido H. Clever, Kay Severin
Abstract
Abstract Thirteen palladium‐ligand assemblies with different structures and topologies were investigated for the ability to bind lithium ions. In one case, the addition of LiBF 4 resulted in a profound structural rearrangement, converting a dincluclear [Pd 2 L 4 ] 4+ complex into a low‐symmetry [Pd 4 L 8 ] 8+ assembly with two binding pockets for solvated LiBF 4 ion pairs. The rearrangement could only be induced by Li + , indicating highly specific host–guest interactions. A structural analysis of the [Pd 4 L 8 ] 8+ receptor revealed a compact structure with multiple intramolecular interactions, reminiscent of what is seen for natural and synthetic foldamers.