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	Microporous-structural rare-earth coordination polymers constructed by 2-bromoterephthalate
	Haitao Xu ; Jiahe Liang ; Jing Zhuang ; Huizhong Kou ; Ruji Wang ; Yadong Li
	2010-05-06 ; 2010-05-06
关键词	Experimental/ crystal structure desorption polymers porous materials thermal analysis X-ray diffraction/ microporous-structural rare-earth coordination polymers 2-bromoterephthalate La/sub 2/(C/sub 8/H/sub 3/BrO/sub 4/)/sub 3 /2H/sub 2/O Pr/sub 2/(C/sub 8/H/sub 3/BrO/sub 4/)/sub 3 /2H/sub 2/O hydrothermal synthesis Ln/sub 3+/ ion center carboxyl groups metal-organic layer nitrogen gas sorption desorption TGA X-ray powder diffraction pattern thermal stability coordinated water molecules crystal structure/ A6140G Structure of powders and porous materials A6140K Structure of polymers, elastomers, and plastics A6845D Adsorption and desorption kinetics evaporation and condensation A6165 Crystal structure of specific organic compounds
中文摘要	The two novel microporous rare-earth coordination polymers: La/sub 2/(C/sub 8/H/sub 3/BrO/sub 4/)/sub 3/2H /sub 2/O (1) and Pr/sub 2/(C/sub 8/H/sub 3/BrO/sub 4 /)/sub 3/2H/sub 2/O (2) are yielded by the hydrothermal synthesis. Complex 1 and 2 are isomorphous. The Ln/sub 3+/ ion center is located in the nine-coordinated environment, and both carboxyl groups of each ligand coordinate with the metal ion in the same coordination fashion. The ligands, whose carboxyl group chelates Ln/sub 3+/ ion center in mu /sub 1/ or mu /sub 3/fashion, alternately link Ln/sub 3+/ ions to get the ID chain, then the carboxyl group chelating Ln/sub 3+/ ion center in mu /sub 3/ fashion bridges another two Ln/sub 3+/ ion centers from the other two chains to form metal-organic layer. The layers are connected by the ligands in mu /sub 4/ fashion to furnish 1D channel-structures through b-axis. The microporous structure is well characterized by the nitrogen gas sorption and desorption. TGA and X-ray powder diffraction pattern reveal that the thermal stability of complexes is high and the open frameworks are retained upon removal of coordinated water molecules.
语种	英语 ; 英语
出版者	Elsevier ; Netherlands
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/12604]
专题	清华大学
推荐引用方式 GB/T 7714	Haitao Xu,Jiahe Liang,Jing Zhuang,et al. Microporous-structural rare-earth coordination polymers constructed by 2-bromoterephthalate[J],2010, 2010.
APA	Haitao Xu,Jiahe Liang,Jing Zhuang,Huizhong Kou,Ruji Wang,&Yadong Li.(2010).Microporous-structural rare-earth coordination polymers constructed by 2-bromoterephthalate..
MLA	Haitao Xu,et al."Microporous-structural rare-earth coordination polymers constructed by 2-bromoterephthalate".(2010).

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