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Investigating the crystal engineering of the pillared paddlewheel metal–organic framework Zn2(NH2BDC)2DABCO

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Abstract

The synthesis of Zn2(NH2BDC)2DABCO was investigated with the hopes of producing a material with a high surface area. Despite considerable efforts to get reproducible results, replacing BDC with NH2BDC was not trivial; the gas adsorption isotherms were inconsistent, resulting in different gas uptakes and large variation in hysteresis loops. Given this, we examined the gas adsorption isotherms (BET surface area and pore size distributions), the solution-phase NMR, and the powder X-ray diffractograms of our materials in order to puzzle out the underlying chemistry. From this data, we illustrate how 1D chains of Zn(H2O)2(NH2BDC) are converted to partially pillared Zn2(NH2BDC)2DABCO which is either amorphous or crystalline based on the NH2BDC : DABCO ratio.

Graphical abstract: Investigating the crystal engineering of the pillared paddlewheel metal–organic framework Zn2(NH2BDC)2DABCO

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Publication details

The article was received on 22 May 2018, accepted on 03 Sep 2018 and first published on 03 Sep 2018


Article type: Paper
DOI: 10.1039/C8CE00848E
Citation: CrystEngComm, 2018, Advance Article
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    Investigating the crystal engineering of the pillared paddlewheel metal–organic framework Zn2(NH2BDC)2DABCO

    D. T. McGrath, V. A. Downing and M. J. Katz, CrystEngComm, 2018, Advance Article , DOI: 10.1039/C8CE00848E

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