A Rare Structural Motif for a Luminescent Cu(I) Coordination Polymer with 3-(Pyridin-2-yl)triimidazotriazine

The coordination ability of the pyridine derivative cyclic triimidazole, namely 3-(pyridin-2-yl)triimidazotriazine (TT-Py) towards Cu(I) was explored. TT-Py is an appealing nitrogen-rich ligand characterized by presence three imidazole nitrogen atoms with trigonal symmetry and a moiety, available for to metal ions. multidentate nature allows isolate, reaction CuI at room temperature, one-dimensional network [Cu2I2(TT-Py)]n (1). 1 rare structural built-up combination in 1:2 ratio two common motifs halides polymers, which are double-stranded stair zig-zag chain. displays one broad long-lived emission solid state, has been associated, support DFT TDDFT calculation, low-energy transitions MLCT or XMLCT character.