The title compound, [CuNa(C4H3O7S)(C10H8N2)(H2O)3]n, consists of one CuIIcation, one NaIcation, one 2-sulfonatobutanedioate trianion (SSC3−), one 2,2′-bipyridyl (bpy) ligand and three coordinated water molecules as the building unit. The coordination of the CuIIcation is composed of two pyridyl N atoms, one water O atom and two carboxylate O atoms in a distorted square-pyramidal coordination geometry with an axial elongation. The NaIcation is six-coordinated by three water molecules and three carboxylate O atoms from three SSC3−ligands in a distorted octahedral geometry. Two SSC3−ligands link two CuIIcations to form a Cu2(SSC)2(bpy)2macrocyclic unit lying across an inversion centre, which is further linked by NaIcationsviaNa—O bonds to give a one-dimensional chain. Interchain hydrogen bonds link these chains to form a two-dimensional layer, which is further extended into a three-dimensional supramolecular framework through π–π stacking interactions. The thermal stability of the title compound has also been investigated.
标题化合物[CuNa(C4H3O7S)(C10H8N2)(H2O)3]n由一个CuII阳离子、一个NaI阳离子、一个2-磺酸基丁二酸三阴离子(SSC3-)、一个2,2′-联吡啶(bpy)配体和三个配位水分子组成。CuIIcation 的配位由两个吡啶基 N 原子、一个水 O 原子和两个羧酸盐 O 原子组成,配位几何为具有轴向伸长的畸变方锥体。NaIcation 由三个水分子和来自三个 SSC3 配体的三个羧酸盐 O 原子以扭曲的八面体几何形状形成六配位。两个 SSC3 配体连接两个 CuII 阳离子,形成横跨反转中心的 Cu2(SSC)2(bpy)2 大环单元,NaI 阳离子通过 Na-O 键进一步连接该单元,形成一维链。链间氢键将这些链连接起来,形成一个二维层,并通过 π-π 堆积相互作用进一步扩展成一个三维超分子框架。此外,还对标题化合物的热稳定性进行了研究。