Inorganic Chemistry Communication
Inorganic Chemistry Communication
5 years ago

A 3D supramolecular network constructed from {Ni9} cluster and benzotriazole

A 3D supramolecular network constructed from {Ni9} cluster and benzotriazole
The solvothermal reaction of Hbta (Hbta=benzotriazole) and Ni(NO3)2·6H2O yielded a blue block crystal, [Ni9(bta)12(NO3)6(DMA)6]·3DMA (1), (DMA= N,N-dimethylacetamide), which has been characterized by various measurements including elemental analysis, thermogravimetric (TG) analysis, infrared (IR) spectrum, powder X-ray diffraction (PXRD), and X-ray single-crystal diffraction. In compound 1, three crystallographic independent Ni2+ ions are connected by two types of Hbta ligands to generate a centrosymmetric nine-nuclear {Ni9} cluster, which could further form a 3D supramolecular network through intra- and intermolecular hydrogen bonds. The TG curve of 1 exhibits a weight loss between 25 and 330°C, being in accordance with the release of DMA. Furthermore, the variable-temperature magnetic susceptibility of 1 has studied, and the results indicate that antiferromagnetic interactions exist among Ni2+ ions.

Publisher URL: www.sciencedirect.com/science

DOI: S1387700317306822

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