A Series of New Three-Dimensional d鈥揻 Heterometallic Coordination Polymers with Rare 10-Connected bct Net Topology Based on Planar Hexanuclear Heterometallic Second Building Units

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• 作者：Song-Liang Cai ; Sheng-Run Zheng ; Zhen-Zhen Wen ; Jun Fan ; Wei-Guang Zhang
• 刊名：Crystal Growth & Design
• 出版年：2012
• 出版时间：November 7, 2012
• 年：2012
• 卷：12
• 期：11
• 页码：5737-5745
• 全文大小：529K
• 年卷期：v.12,no.11(November 7, 2012)
• ISSN：1528-7505

文摘

A series of new three-dimensional (3D) d鈥揻 heterometallic coordination polymers, namely, [LnM(渭₅-PyIDC)(渭₂-INIC)(渭₃-INIC)]路xH₂O [Ln = Sm, M = Co, x = 3 (1); Ln = Sm, M = Ni, x = 1 (2); Ln = Eu, M = Co, x = 3 (3); Ln = Eu, M = Cd, x = 3 (4); Ln = Eu, M = Zn, x = 3 (5); Ln = Gd, M = Co, x = 3 (6); Ln = Gd, M = Cd, x = 3 (7); Ln = Tb, M = Co, x = 3 (8); Ln = Tb, M = Cd, x = 2 (9); Ln = Tb, M = Zn, x = 3 (10); H₃PyIDC = 2-(pyridine-3-yl)-1H-4,5-imidazoledicarboxylic acid; HINIC = isonicotinic acid], have been successfully synthesized under hydrothermal conditions and structurally characterized. All the complexes are isostructural and exhibit novel 3D pillar-layered coordination frameworks constructed by the linkages of 2D heterometallic layers and INIC^{鈥?/sup> pillars. Topological analysis indicates that those complexes possess a rare uninodal 10-connected bct topology based on planar hexanuclear heterometallic [Ln₂M₄(PyIDC)₂] second building units. To the best of our knowledge, complexes 1鈥?b>10 represent examples of 3D lanthanide鈥搕ransition heterometal鈥搊rganic coordination polymers with highly connected bct networks. Moreover, the luminescence properties of complexes 3鈥?b>5 and 7鈥?b>10 and the magnetic properties of 6鈥?b>8 were also investigated.}