Microwave synthesis and single-crystal-to-single-crystal transformation of magnesium coordination polymers exhibiting selective gas adsorption and luminescence properties

Hsin Kuan Liu, Tai Hsing Tsao, Ya Ting Zhang, Chia Her Lin*

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

51 引文 斯高帕斯(Scopus)

摘要

A series of new magnesium coordination polymers, [Mg2(BTEC) (H2O)4]·2H2O (1), [Mg 2(BTEC)(H2O)6] (2), and [Mg2(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°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°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]·4H2O, 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.

原文英語
頁(從 - 到)1462-1468
頁數7
期刊CrystEngComm
11
發行號7
DOIs
出版狀態已發佈 - 2009
對外發佈

ASJC Scopus subject areas

  • 化學 (全部)
  • 材料科學(全部)
  • 凝聚態物理學

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