Issue 21, 2011

Multiple phase-transitions upon selective CO2adsorption in an alkyl ether functionalized metal–organic framework—an in situ X-ray diffraction study

Abstract

The flexible alkyl ether functionalized metal–organic framework [Zn2(BME-bdc)2(dabco)]n (BME-bdc = 2,5-bis(2-methoxyethoxy)-1,4-benzenedicarboxylate, dabco = 1,4-diazabicyclo[2.2.2]octane) shows remarkable structural changes upon selective adsorption of CO2 as determined by in situ X-ray diffraction at 195 K. Upon accommodation of carbon dioxide [Zn2(BME-bdc)2(dabco)]n transfers from a narrow pore form to an open pore form, which exhibits a much higher unit cell volume. Due to the slow adsorption kinetics an unexpected metastable intermediate form could be identified.

Graphical abstract: Multiple phase-transitions upon selective CO2 adsorption in an alkyl ether functionalized metal–organic framework—an in situ X-ray diffraction study

Supplementary files

Article information

Article type
Paper
Submitted
14 Apr 2011
Accepted
22 Jun 2011
First published
20 Jul 2011

CrystEngComm, 2011,13, 6399-6404

Multiple phase-transitions upon selective CO2 adsorption in an alkyl ether functionalized metal–organic framework—an in situ X-ray diffraction study

S. Henke, D. C. Florian Wieland, M. Meilikhov, M. Paulus, C. Sternemann, K. Yusenko and R. A. Fischer, CrystEngComm, 2011, 13, 6399 DOI: 10.1039/C1CE05446E

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