Temperature-dependent assemblies from a 2-D triple-stranded meso-helical layer to a 3-D chain-layer metal-organic framework

被引：13
作者：
Jin, Hong-Guang [1 ]
Hong, Xu-Jia [1 ,2 ]
Li, Jing [1 ]
Yan, Yuan-Zhao [1 ]
Liu, Yi-Ting [1 ]
Xu, Shi-Hai [3 ]
Cai, Yue-Peng [1 ,2 ]
机构：
[1] S China Normal Univ, Sch Chem & Environm, Minist Educ, Key Lab Theoret Chem Environm, Guangzhou 510006, Guangdong, Peoples R China
[2] Nanjing Univ, State Key Lab Coordinat Chem, Nanjing 210093, Jiangsu, Peoples R China
[3] Jinan Univ, Dept Chem, Guangzhou 510632, Guangdong, Peoples R China
来源：
DALTON TRANSACTIONS | 2012年 / 41卷 / 47期
关键词：
LANTHANIDE COORDINATION POLYMERS; SUPRAMOLECULAR ISOMERISM; COPPER(II) COMPLEXES; BUILDING UNITS; SINGLE; MOLECULES; LIGAND; NET; ARCHITECTURES; POLYMORPHISM;
D O I：
10.1039/c2dt32234j
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Two different crystal forms, namely {[Dy-2(mpda)(3)(H2O)(2)]center dot H2O}(n) (1) and [Dy-2(mpda)(3)(H2O)(4)](n) (2), were obtained from the reaction of multidentate 2,6-dimethylpyridine-3,5-dicarboxylic acid (H(2)mpda) with Dy2O3 at different temperatures. Structural analysis reveals that compound 1 is a 2-D triple-stranded meso-helical layer, and 2 a 3-D chain-layer framework. The fluorescent measure shows that compound 1 is a promising luminescent probe for various metals with a remarkable "on-off" switch of emission, mainly deriving from many pairs of inversely arranged 4-aza bowl-like crown ethers distributed in the 2-D helical plane. Moreover, compound 1 presents noticeable hydrogen-sorption at medium pressure.
引用
收藏
页码：14239 / 14243
页数：5
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