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Issue 39, 2014
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An N-rich metal–organic framework with an rht topology: high CO2 and C2 hydrocarbons uptake and selective capture from CH4

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Abstract

We report the storage capacities and separation selectivity of an rht-type s-heptazine-based metal organic framework (MOF), [Cu3(TDPAH)(H2O)3]·13H2O·8DMA, 1, (where TDPAH is 2,5,8-tris(3,5-dicarboxylphenylamino)-s-heptazine and DMA is N,N-dimethylacetamide) for C2 hydrocarbons and CO2 over CH4. MOF 1 displays the highest C2H2/CH4 selectivity of 80.9 as well as record high C2H4 and C2H6 adsorption enthalpies. Theoretical calculations reveal that s-heptazine and NH groups within the framework have synergistic effects on CO2 binding.

Graphical abstract: An N-rich metal–organic framework with an rht topology: high CO2 and C2 hydrocarbons uptake and selective capture from CH4

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Publication details

The article was received on 16 Jan 2014, accepted on 21 Mar 2014 and first published on 25 Mar 2014


Article type: Communication
DOI: 10.1039/C4CC00375F
Citation: Chem. Commun., 2014,50, 5031-5033
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    An N-rich metal–organic framework with an rht topology: high CO2 and C2 hydrocarbons uptake and selective capture from CH4

    K. Liu, B. Li, Y. Li, X. Li, F. Yang, G. Zeng, Y. Peng, Z. Zhang, G. Li, Z. Shi, S. Feng and D. Song, Chem. Commun., 2014, 50, 5031
    DOI: 10.1039/C4CC00375F

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