Journal
INORGANIC CHEMISTRY
Volume 53, Issue 14, Pages 7692-7699Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ic5009895
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Funding
- National Natural Science Foundation of China [21171075/B010303, 21103073/B030201]
- innovation project for graduate student research of Jiangsu Province [1011310003]
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Three N-H functionalized metal organic frameworks, Pb-DDQ, Zn-DDQ, and Cu-DDQ were synthesized with a new flexible dicarboxylate ligand based on quinoxaline (H(2)DDQ = N,N'-dibenzoic acid-2,3-diaminoquinoxaline). CO2 adsorptions indicate that Zn-DDQ and Cu-DDQ have greatly enhanced the CO2 uptake due to the opposite N-H groups on pyrazine. With very small adsorption of N-2, Cu-DDQ shows high selectivity for CO2 and N-2. The three MOFs also have large adsorptions of some selected dyes, while Zn-DDQ and Cu-DDQ with large but different shapes of pores are demonstrated to be promising materials for fast separation of MB/other and CV/other mixtures, respectively. The cyanosilylation of aldehydes and ketones with high yields in a short reaction time for Cu-DDQ indicates that Cu-DDQ has a higher Lewis acidity than the other two MOFs.
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