Structures, Fluorescent Properties of the d10 Metal Ions Compounds Based on Molecular Clips
摘要:
Two closed-shell d(10) metal ions complexes Cd-2(L)(2)(I)(4) (1) and Zn-2(L)(2)(Cl)(4)(DMF)2 (2) were prepared from molecular clips, 2,2'-bis(benimidazol-1-ylmethyl)-biphenyl (L), and structurally characterized to investigate the structures. Both compounds 1 and 2 are bimetallic supramolecular rectangles in which two L ligands are connected by two tetrahedral coordinated metal ions. These units are connected together through weak pi center dot center dot center dot pi interaction, and 1 and 2 are crystallized in P2(1)/c and P-1 space group, respectively. Solid state fluorescent measurements exhibit the presence of ligand-based emission at 407 and 370 nm of compounds 1 and 2, respectively.