Rare-earth,nitrogen-rich,oxygen heterocyclic supramolecular compounds(Nd,Sm,and Eu):Synthesis,structure,and catalysis for ammonium perchlorate  

作　　者：Wenjia Hao Tao Huang Bo Jin Jinhao Zhang Juan Shen Rufang Peng 

机构地区：[1]State Key Laboratory of Environment-friendly Energy Materials,School of Materials Science and Engineering,Southwest University of Science and Technology,Mianyang 621010,China

出　　处：《Journal of Rare Earths》2022年第3期428-433,I0003,共7页稀土学报（英文版）

基　　金：project supported by the National Natural Science Foundation of China(21875192);Outstanding Youth Science and Technology Talents Program of Sichuan(19JCQN0085);the Basic Research Project of Sichuan Province for Science and Technology Development(2019YJ0355)。

摘　　要：Three novel rare-earth,nitrogen-rich and oxygen heterocyclic supramolecular complexes,namely[Nd(BTF)_(2)(H_(2)O)_(5)]_(n),[Sm(BTF)_(2)(H_(2)O)_(5)]_(n),and[Eu(BTF)_(2)(H_(2)O)_(5)]_(n),were synthesized.A single crystal was obtained by the solvent evaporation method,and the structure and coordination mode of metal complexes were determined by single crystal X-ray diffraction.Results show that the supramolecular complexes contain many hydrogen bonds and thus have good thermal stability(T_(dec)>540 K).The thermal decomposition of ammonium perchlorate(AP)catalyzed by the complexes was investigated by differential thermal analysis,which reveals a pre-eminent catalytic effect on AP.The high temperature decomposition peak of AP can be advanced by nearly 90 K at the amount of added complexes of 10 wt%,and the activation energy of AP descent range is from 70 to 150 kJ/mol.The other properties were fully characterized through elemental analysis and Fourier transform infrared spectroscopy.

关 键 词：Nitrogen rich oxygen heterocycles Lanthanide supramolecular complexes Ammonium perchlorate Thermal decomposition Rare earths 

分 类 号：O641.4[理学—物理化学] O643.36[理学—化学]