Syn-(Me,Me)Bimane as a Structural Building Block in Metal Coordination Architectures

Li(I) and Na(I) complexes of the fluorescent dye syn-(Me,Me)bimane were isolated and crystallographically characterized, revealing the bimane as a principal component in diverse coordination topologies, including discrete and polymeric structures. The bimane exhibits multiple functions in these frameworks, acting as a variable-denticity O-donor ligand, π-stacking unit, and hydrogen bond acceptor. These features highlight a new role for syn-bimanes, not as fluorophores, but as versatile building blocks in metal coordination architectures.