Issue 39, 2018

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

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

Supplementary files

Article information

Article type
Paper
Submitted
22 Mud 2018
Accepted
03 Ndz 2018
First published
03 Ndz 2018

CrystEngComm, 2018,20, 6082-6087

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, 20, 6082 DOI: 10.1039/C8CE00848E

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