A dynamic and multi-responsive porous flexible metal–organic material

Mohana Shivanna, Qing-Yuan Yang, Alankriti Bajpai, Ewa Patyk-Kazmierczak and Michael J. Zaworotko ()
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Mohana Shivanna: University of Limerick
Qing-Yuan Yang: University of Limerick
Alankriti Bajpai: University of Limerick
Ewa Patyk-Kazmierczak: University of Limerick
Michael J. Zaworotko: University of Limerick

Nature Communications, 2018, vol. 9, issue 1, 1-7

Abstract: Abstract Stimuli responsive materials (SRMs) respond to environmental changes through chemical and/or structural transformations that can be triggered by interactions at solid-gas or solid-liquid interfaces, light, pressure or temperature. SRMs span compositions as diverse as organic polymers and porous inorganic solids such as zeolites. Metal–organic materials (MOMs), sustained by metal nodes and organic linker ligands are of special interest as SRMs. SR-MOMs have thus far tended to exhibit only one type of transformation, e.g. breathing, in response to one stimulus, e.g. pressure change. We report [Zn2(4,4′-biphenyldicarboxylate)2(4,4′-bis(4-pyridyl)biphenyl)]n, an SR-MOM, which exhibits six distinct phases and four types of structural transformation in response to various stimuli. The observed structural transformations, breathing, structural isomerism, shape memory effect, and change in the level of interpenetration, are previously known individually but have not yet been reported to exist collectively in the same compound. The multi-dynamic nature of this SR-MOM is mainly characterised by using in-situ techniques.

Date: 2018
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DOI: 10.1038/s41467-018-05503-y

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