Synthesis,Structures, and Magnetic Properties of Zigzag Tetranuclear Lanthanide Complexes |
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| Authors: | Xiang Li Yuhan Liu Xiao-Wei Chi Guang-Zhou Zhu Feng Gao |
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| Institution: | School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, 221116 Xuzhou, P. R. China |
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| Abstract: | Five isostructural tetranuclear lanthanide complexes with the general formula Ln4(teaH2)2(teaH)2(NO3)6] · 2CH3OH Ln3+ = Dy3+ ( 1 ), Tb3+ ( 2 ), Ho3+ ( 3 ), Er3+ ( 4 ), and Gd3+ ( 5 )] were successfully synthesized by the reaction of various lanthanide nitrate and triethanolamine (teaH3) ligand. Single crystal X-ray analyses reveal the eight-coordinate Ln3+ centers adopt a slightly distorted triangular dodecahedron geometry and nine-coordinate Ln3+ ions own an approximately capped square antiprism environment in similar zigzag Ln4 core. Magnetic studies demonstrate the presence of anitferromagnetic interactions between Ln3+ centers without obvious SMM behavior. |
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| Keywords: | Magnetic properties Lanthanides Triethanolamine Zigzag |
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