期刊
CRYSTENGCOMM
卷 11, 期 7, 页码 1462-1468出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/b819559e
关键词
-
资金
- National Science Council, Taiwan [NSC 97-2113-M-033-003MY2]
- Chung Yuan Christian University, Taiwan [CYCU-97-CRCH]
Lambda series of new magnesium coordination polymers, [Mg-2(BTEC)(H2O)(4)]center dot 2H(2)O (1), [Mg-2(BTEC)(H2O)(6)] (2), and [Mg-2(BTEC)(H2O)(8)] (3) (BTEC 1,2,4,5-benzenetetracarboxylate anion), were synthesized from magnesium nitrate and 1,2,4,5-benzenetetracarboxylic acid with variable ratios of organic base under microwave-assisted solvothermal reactions at the temperature of 180 (1) or 150 degrees C (2 and 3). The results from crystal structure analysis showed that 1 was a 3D metal-organic framework, 2 a 2D layer, and 3 a 1D ladder structure. In addition, heating 1 at the temperature of 150 degrees C would convert it to 1a which can be a novel single-crystal-to-single-crystal transformation of coordination polymer. Single crystal of 1a has a new 3D structure with formula [Mg-15(BTEC)(6)(HBTEC)(2)(H2O)(12)]center dot 4H(2)O, containing unsaturated magnesium sites. Further gas adsorption experiments revealed that 1a undergoes a highly selective sorption of hydrogen instead of nitrogen gases. Photoluminescence studies also displayed that 1a emits extra strong green luminescence around 510 nm under the excitation of ultraviolet light.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据