ISIS Neutron and Muon Source Data Journal

Pore-Opening of Zeolitic Imidazolate Framework COK-17 under Nitrogen Pressure: Study Using Inelastic Neutron Scattering

Abstract: Flexible Zeolitic Imidazolate Frameworks (ZIF) are unique in a sense that their pore aperture can be regulated using the applied gas pressure. Utilizing this phenomenon, a single ZIF can be used selective for different gases depending on the applied gas pressure and gas-type. In order to understand the flexibility of ZIFs at molecular level, different techniques are being utilized. Inelastic neutron scattering has shown that linker rotation under gas pressure causes the pore-aperture opening in methylimidazolate based frameworks. On the other hand, X-ray diffraction based studies have shown that lattice deformation under gas pressure cause the pore-aperture tuning. In this regard, we propose to investigate the flexibility of a recently reported ZIF i.e. COK-17 using INS under N2 gas pressure. The COK-17 has shown very high gas separation selectivity attributed to its pore-aperture tuning under gas pressure.

Public release date: 28 February 2028

Principal Investigator: Dr Sandeep Kumar Sharma
Experimenter: Mr Jaideep Mor
Local Contact: Dr Jeff Armstrong

DOI: 10.5286/ISIS.E.RB2420307-1

Parent DOI: 10.5286/ISIS.E.RB2420307

ISIS Experiment Number: RB2420307

Part Number: 1

Date of Experiment: 24 February 2025

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Dr Sandeep Kumar Sharma et al; (2025): Pore-Opening of Zeolitic Imidazolate Framework COK-17 under Nitrogen Pressure: Study Using Inelastic Neutron Scattering , STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2420307-1

Data is released under the CC-BY-4.0 license.