5 years ago

Solvent exchange in a metal–organic framework single crystal monitored by dynamic in situ X-ray diffraction

Solvent exchange in a metal–organic framework single crystal monitored by dynamic in situ X-ray diffraction
Ian M. Walton, Eric Sylvester, Jordan M. Cox, Travis Mitchell, Jason B. Benedict, Yu-Sheng Chen, Cassidy A. Benson, Gage Bateman
Understanding the processes by which porous solid-state materials adsorb and release guest molecules would represent a significant step towards developing rational design principles for functional porous materials. To elucidate the process of liquid exchange in these materials, dynamic in situ X-ray diffraction techniques have been developed which utilize liquid-phase chemical stimuli. Using these time-resolved diffraction techniques, the ethanol solvation process in a flexible metal–organic framework [Co(AIP)(bpy)0.5(H2O)]·2H2O was examined. The measurements provide important insight into the nature of the chemical transformation in this system including the presence of a previously unreported neat ethanol solvate structure.Dynamic in situ single crystal X-ray diffraction revealed unique and important information about the structural reorganization that occurs upon guest exchange in a cobalt-based metal organic framework.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1107/S2052520617008447

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