| Abstract: | The novel title complex, {Cu3(C8H3NO6)2(OH)2(H2O)6]·2H2O}n, has a one‐dimensional polymeric double chain structure where the three Cu atoms are linked by μ2‐OH and μ2‐H2O groups, and these trinuclear centres are bridged by two 3‐nitrophthalate ligands. The asymmetric unit contains one and a half crystallographically independent Cu atoms (one lying on a centre of inversion), both coordinated by six O atoms and exhibiting distorted octahedral coordination geometries, but with different coordination environments. Each 3‐nitrophthalate ligand connects to three Cu atoms through two O atoms of one carboxylate group and one O atom of the nitro group. The remaining carboxylate group is free and is involved in intrachain hydrogen bonds, reinforcing the chain linkage. |
