Construction and Hierarchical Self‐Assembly of a Supramolecular Metal–Carbene Complex with Multifunctional Units

Hierarchical combinations involving metal–ligand interactions and host−guest interactions can consolidate building blocks with unique functions into material properties. This study reports the construction and hierarchical self‐assembly of multifunctional trinuclear Au I tricarbene complex containing three crown ether units and three ferrocene units. Host−guest interactions between the multifunctional trinuclear Au I tricarbene complex and organic ammonium salts were investigated, revealing that crown ether‐based host−guest interactions can effectively regulate the electrochemical properties of the complex. Utilizing bisammonium salt as the cross‐linker and multifunctional trinuclear Au I tricarbene complex as the core, a stimuli‐responsive and self‐healing supramolecular gel with different functional units was obtained.