New chain polymer [Yb(tpa)(H2O)2Co(CN)6]n · 7n H2O: synthesis,structure, and magnetic characteristics |
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| Institution: | N. S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russian Federation |
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| Abstract: | The 3d– 4f heterometallic polymeric complex, namely Yb(tpa)(H2O)2Co(CN)6]n·7n H2O tpa = tris(2-pyridylmethyl)- amine], was synthesized and characterized. Its polymer structure is formed of Yb(tpa)(H2O)2Co(CN)6] chains and crystallization water molecules with a two-capped trigonal prism Yb3+ coordination polyhedron; the Yb3+ coordination number is 8, and the coordination site is YbN6O2. Magnetic characteristics indicate that the complex exhibits the properties of a single-chain magnet with a magnetization reversal barrier(!E/kB) of 42 K. |
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| Keywords: | ytterbium heterometallic complexes cyanometallate chains coordination polymers single-molecule magnets |
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