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Novel 3-D Framework Nickel(II) Complex with Azide, Nicotinic Acid, and Nicotinate(1−) as Coligands:  Hydrothermal Synthesis, Structure, and Magnetic Properties

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posted on 17.10.2005 by Fu-Chen Liu, Yong-Fei Zeng, Jian-Rong Li, Xian-He Bu, Hong-Jie Zhang, Joan Ribas
The hydrothermal reaction of Ni(NO3)2, NaN3, and nicotinic acid (Hnic) yielded a 3-D supramolecular framework complex, [Ni1.5(N3)(nic)2(Hnic)]n (1) with unusual magnetic properties. In 1, Hnic and nic-1 coexist and show different coordination modes (μ2-Hnic-N,O, μ2-nic-N,O, and μ3-nic-N,O,O bridging NiII ions), and azide groups adopt μ-1,1 (EO) bridging mode linking NiII ions with an unusual Ni−N−Ni angle.

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