A novel organic-inorganic hybrid 3D framework based on neodymium oxalate-selenites [Nd2(SeO3)2(C2O4)(H2O)2]•2H2O

被引：5
|
作者：
Liu, Yun [1 ,2 ]
Wang, Qiang [3 ]
Chen, Lijuan [1 ,2 ]
Zhao, Haozhe [1 ]
Zhao, Junwei [1 ]
机构：
[1] Henan Univ, Inst Mol & Crystal Engn, Coll Chem & Chem Engn, Kaifeng 475004, Henan, Peoples R China
[2] Henan Univ, Basic Expt Teaching Ctr, Kaifeng 475004, Henan, Peoples R China
[3] Luoyang Inst Sci & Technol, Dept Environm Engn & Chem, Luoyang 471023, Henan, Peoples R China
来源：
SYNTHETIC METALS | 2012年 / 162卷 / 17-18期
基金：
中国博士后科学基金;
关键词：
Neodymium; Oxalate; Selenite; CRYSTAL-STRUCTURES; MAGNETIC-PROPERTIES; SELENATE; CLUSTER; ABSORPTION; COMPLEXES; CU;
D O I：
10.1016/j.synthmet.2012.07.009
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A novel organic-inorganic hybrid 3D framework based on neodymium oxalate-selenites [Nd-2(SeO3)(2)(C2O4) (H2O)(2)]center dot 2H(2)O (1) has been successfully synthesized under hydrothermal conditions and further characterized by elemental analyses, inductively coupled plasma atomic emission spectrometry (ICP-AES), X-ray powder diffraction (XRPD), IR spectrum, thermal analysis, and X-ray single-crystal diffraction. X-ray structural analysis reveals that 1 features a square ring composed of two {Nd2O4C2} subunits bridged by two {SeO3}(2-) anions via the corner-sharing mode. Interesting, the rhombic {Nd2O2} units interconnected with each other generating the 1D zigzag chain structure. whereas adjacent 1D chains are bridged by {SeO3}(2-) groups forming the 2D network architecture, which are further linked together through oxalate ligands leading to the 3D framework. The magnetic behavior of 1 is mainly due to the splitting of the 10-fold degenerate I-4(9/2) ground state affected by the crystal field perturbation and the progressive depopulation of the higher energy state upon cooling. (c) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：1648 / 1653
页数：6
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