College of Chemistry and Bioengineering, Hunan University of Science and Engineering, Yongzhou 425199, China.
Molecules. 2023 Jun 2;28(11):4529. doi: 10.3390/molecules28114529.
Four one-dimensional complexes, denoted as [NiL][Ni(CN)] (), [CuL][Ni(CN)] (), [NiL][Ni(CN)]·2HO (), and [CuL][Ni(CN)]·2HO () (L = 1,8-dimethyl-1,3,6,8,10,13-hexaaza-cyclotetradecane; L = 1,8-dipropyl-1,3,6,8,10,13-hexaazacyclotetradecane) were synthesized by reacting nickel/copper macrocyclic complexes with K[Ni(CN)]. Subsequently, the synthesized complexes were characterized using elemental analysis, infrared spectroscopy analysis, thermogravimetric analysis, and X-ray powder diffraction. Single-crystal structure analysis revealed that the Ni(II)/Cu(II) atoms were coordinated by two nitrogen atoms from [Ni(CN)] with four nitrogen atoms from a macrocyclic ligand, forming a six-coordinated octahedral coordination geometry. Nickel/copper macrocyclic complexes were bridged by [Ni(CN)] to construct one-dimensional chain structures in -. The characterization results showed that the four complexes obeyed the Curie-Weiss law with a weak antiferromagnetic exchange coupling.
四种一维配合物，分别表示为[NiL][Ni(CN)] ()、[CuL][Ni(CN)] ()、[NiL][Ni(CN)]·2HO ()和[CuL][Ni(CN)]·2HO ()（L=1,8-二甲基-1,3,6,8,10,13-六氮杂环十四烷；L=1,8-二丙基-1,3,6,8,10,13-六氮杂环十四烷），通过镍/铜大环配合物与 K[Ni(CN)]反应合成。随后，通过元素分析、红外光谱分析、热重分析和 X 射线粉末衍射对合成的配合物进行了表征。单晶结构分析表明，Ni(II)/Cu(II)原子与来自[Ni(CN)]的两个氮原子以及大环配体的四个氮原子配位，形成六配位八面体配位几何结构。镍/铜大环配合物通过[Ni(CN)]桥联，在-中构建一维链状结构。表征结果表明，这四个配合物符合居里-外斯定律，具有较弱的反铁磁交换耦合。
