Experimental Evidence of Negative Linear Compressibility in the MIL-53 Metal-Organic Framework Family

We report a series of powder X-ray diffraction experiments performed on the soft porous crystals MIL-53(Al) and NH -MIL-53(Al) in a diamond anvil cell under different pressurization media. Systematic refinements of the obtained powder patterns demonstrate that these materials expand along a specific...

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Bibliographic Details
Published in:CrystEngComm 2015-01, Vol.17 (2), p.276-280
Main Authors: Serra-Crespo, Pablo, Dikhtiarenko, Alla, Stavitski, Eli, Juan-Alcañiz, Jana, Kapteijn, Freek, Coudert, François-Xavier, Gascon, Jorge
Format: Article
Language:English
Subjects:
Chemical Sciences
Compressibility (powder)
Crystals
Diamond anvil cells
Diffraction
Material chemistry
MATERIALS SCIENCE
Mathematical analysis
Metal-organic frameworks
or physical chemistry
Pressurization
Pressurizing
Quantum chemistry
Theoretical and
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Summary:We report a series of powder X-ray diffraction experiments performed on the soft porous crystals MIL-53(Al) and NH -MIL-53(Al) in a diamond anvil cell under different pressurization media. Systematic refinements of the obtained powder patterns demonstrate that these materials expand along a specific direction while undergoing total volume reduction under an increase in hydrostatic pressure. The results confirm for the first time the Negative Linear Compressibility behaviour of this family of materials recently predicted from quantum chemical calculations.
ISSN:1466-8033
1466-8033
DOI:10.1039/c4ce00436a