Influence of Interpenetration on the Flexibility of MUV-2

21 February 2019, Version 1
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

The crystal structure of an interpenetrated tetrathiafulvalene(TTF)- based metal-organic framework (MOF) is reported. This MOF, denoted MUV-2-i, is the interpenetrated analogue of the hierarchical and flexible MUV-2. Interestingly, the large flexibility exhibited by MUV-2 upon polar solvent adsorption is considerably reduced in the interpenetrated form which can be explained by short S···S interactions between adjacent TTF-based ligands ensuring more rigidity to the framework. In addition, porosity of MUV-2-i significantly decreased in comparison to MUV-2 as shown by the reduced free volume in the crystal structure.

Keywords

metal-organic frameworks (MOFs)
interpenetration structure
Flexible MOFs
breathing MOFs

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