A Tetranuclear Nickel(II) Cubane Complex with <Emphasis Type="Italic">O</Emphasis>-Vanillin Ligand |
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| Authors: | Gui-Miao Yu Lang Zhao Li-Fei Zou Yun-Nan Guo Gong-Feng Xu Yun-Hui Li Jinkui Tang |
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| Institution: | (1) State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, People’s Republic of China;(2) School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun, 130022, People’s Republic of China; |
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| Abstract: | Abstract A novel cubane complex with formula of Ni(μ3-OCH3)L(CH3OH)]4 (1) has been successfully assembled by using o-vanillin as multidentate ligand. Each Ni(II) ion is six coordinate, being bound to four oxygen atoms from four methanol molecules,
one phenoxido oxygen atom and one aldehyde oxygen atom from the o-vanillin ligand. The cubane structure is characterized by a Ni4O4 core assembled from four nickel atoms and four deprotonated, bidentate o-vanillin ligands and the cubic array of alternating nickel and oxygen atoms give intracluster metal–metal separations of
3.054(1) and 3.076(1) ? respectively. Preliminary magnetic studies suggest the existence of a weak antiferromagnetic coupling
between the nickel ions. |
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