A polythreading array formed by a (3,5)-connected 3D anionic network and 1D cationic chains: synthesis, structure, and catalytic properties

An unusual copper(II) coordination polymer {[Cu(tmtz)(H2O)4][Cu2(tmtz)2(sip)2]·4H2O}n (1) (tmtz = 1,4-bis(1,2,4-triazol-1-ylmethyl)-2,3,4,5-tetramethylbenzene, sip = 5-sulfoisophthalate) is synthesized by the hydrothermal reaction. X-Ray structural analysis shows that 1 is comprised of two distinct and crystallographically independent polymeric motifs polythreading together. The first motif of 1 is an unusual (3,5)-connected 3D anionic network [Cu2(tmtz)2(sip)2]. The second motif in 1 is the [Cu(tmtz)(H2O)4]n 1D cationic chain. A polythreading array formed by a (3,5)-connected 3D anionic network and 1D cationic chains. The catalytic performance exhibits that 1 is active as a catalyst for the degradation of methyl orange. The thermal analysis is also observed.