Seven Novel Lanthanide Oxalatophosphonates with Two Types of 3D Framework Structures Based on N-Morpholinomethylphosphonic Acid: Syntheses, Crystal Structures, and Luminescence Properties
Seven Novel Lanthanide Oxalatophosphonates with Two Types of 3D Framework Structures Based on N-Morpholinomethylphosphonic Acid: Syntheses, Crystal Structures, and Luminescence Properties
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DOI：
10.1021/cg8013128
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发表时间：
2009-05
影响因子：
3.8
通讯作者：
Yanyu Zhu;Zhengang Sun;Hui-Ru Chen;Jing Zhang;Y. Zhao;N. Zhang;Lei Liu;Xin Lu;Wei-Nan Wang-Wei-Nan-Wan
中科院分区：
文献类型：
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作者：
Yanyu Zhu;Zhengang Sun;Hui-Ru Chen;Jing Zhang;Y. Zhao;N. Zhang;Lei Liu;Xin Lu;Wei-Nan Wang-Wei-Nan-Wan
以N-吗啉甲基膦酸为膦酸配体，以草酸为第二金属连接体，合成了7种具有两种3D骨架结构的新型稀土(III)草酸膦酸盐，即[Ln3(HL)(C2O4)4(H2O)4]·2H2O (Ln = Pr (1), Nd (2), Sm (3), H2L = O(CH2CH2)2NCH2PO3H2) 和 [Ln2(H2L)(C2O4)3(H2O)3]·H2O (Ln = Eu (4), Gd (5), Tb (6), Dy (7)) 在水热条件下合成。化合物 1−3 是同构的，具有复杂的 3D 框架结构，由 {Ln3(C2O4)4}+ 3D 网络与 {Ln3(HL)}8+ 1D 链互连形成。化合物 4−7 是同构的，具有与化合物 1−3 不同的 3D 骨架结构。 Ln(III) 离子通过螯合草酸盐配体相互连接，导致沿 c 轴形成镧系草酸盐层。这些层通过 H2L 配体连接，形成 3D 框架类型，通道系统沿着 a 轴。还研究了化合物3、4、6和7的发光性质。
By using the N-morpholinomethylphosphonic acid as the phosphonate ligand and oxalate as the second metal linker, seven novel lanthanide(III) oxalatophosphonates with two types of 3D framework structures, namely, [Ln3(HL)(C2O4)4(H2O)4]·2H2O (Ln = Pr (1), Nd (2), Sm (3), H2L = O(CH2CH2)2NCH2PO3H2) and [Ln2(H2L)(C2O4)3(H2O)3]·H2O (Ln = Eu (4), Gd (5), Tb (6), Dy (7)), have been synthesized under hydrothermal conditions. Compounds 1−3 are isostructural and feature a complex 3D framework structure formed by the interconnection of 3D network of {Ln3(C2O4)4}+ with 1D chains of {Ln3(HL)}8+. Compounds 4−7 are isostructural and possess a 3D framework structure different from that in compounds 1−3. The interconnection of Ln(III) ions by chelating oxalate ligands lead to a lanthanide oxalate layer down the c-axis. These layers are linked by H2L ligands to form a 3D framework type with channel system down the a-axis. Luminescence properties of compounds 3, 4, 6 and 7 have also been studied.