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Issue 6, 2014
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Guest-dependent mechanical anisotropy in pillared-layered soft porous crystals – a nanoindentation study

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Abstract

Soft porous crystals (SPCs) of the type [Zn2(L)2(dabco)]n (L = linear dicarboxylate linker, dabco = 1,4-diazabicyclo[2.2.2]octane) show exceptional mechanical anisotropy. Single-crystal nanoindentation experiments reveal very large changes of the elastic modulus and hardness triggered by exchange of the guests adsorbed in the porous metal–organic framework. The substantial variations of the mechanical properties as a function of the guest molecules can be explained by the responsive nature of these SPCs. Based on non-specific guest–framework interactions, crucial changes of the network geometry induce a complex and dynamical mechanical behaviour.

Graphical abstract: Guest-dependent mechanical anisotropy in pillared-layered soft porous crystals – a nanoindentation study

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Publication details

The article was received on 14 Feb 2014, accepted on 24 Mar 2014 and first published on 25 Mar 2014


Article type: Edge Article
DOI: 10.1039/C4SC00497C
Citation: Chem. Sci., 2014,5, 2392-2397
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    Guest-dependent mechanical anisotropy in pillared-layered soft porous crystals – a nanoindentation study

    S. Henke, W. Li and A. K. Cheetham, Chem. Sci., 2014, 5, 2392
    DOI: 10.1039/C4SC00497C

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