Combining benzotriazoles and azides in copper(II) chemistry: synthesis, structural and spectroscopic characterization of a 1-D corrugated tape [Cu(N3)2(1-Mebta)]n coordination polymer (1-Mebta = 1-methylbenzotriazole)

Abstract

The tertiary CuII/N3 –/1-Mebta reaction scheme, where 1-Mebta is 1-methylbenzotriazole, led to the coordination complex [Cu(N3)2(1-Mebta)]n (1), which has an unusual 1-D corrugated tape polymeric structure built by μ-1,1 and μ3-1,1,1 end-on bridging azido groups, and terminally bound 1-Mebta ligands. Solid-state IR and UV-Vis spectra of 1 are discussed in terms of its structure. The combined results demonstrate the flexibility of both the azido and 1-Mebta groups upon coordination with 3d-metal ions, and their usefulness in the synthesis of azido-rich Cu(II) coordination polymers.