Table · dataset · 2026
Water-Mediated Dissolution–Reassembly of a Viologen-Based Coordination Polymer for Activating Multi-stimuli Chromism
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Structural reconstruction in coordination polymers (CPs) offers a powerful yet underexplored route to emergent functionality beyond static framework design.
Description
Here we report a water-mediated dissolution–reassembly coordination reconstruction process that transforms a tetrahedral Co(II)-based two-dimensional CP (<b>CoVN-1</b>) into two distinct octahedral one-dimensional phases (<b>CoVN-2</b> and <b>CoVN-3</b>) through dissolution–reassembly.
Single-crystal analyses reveal that water coordination induces a tetrahedral-to-octahedral conversion at the metal nodes, accompanied by pronounced conformational reorganization of viologen ligands. This coordination reconstruction activates multi-stimuli chromism such that <b>CoVN-1</b> remains inactive whereas <b>CoVN-2</b> and <b>CoVN-3</b> exhibit reversible photochromic and thermochromic responses and <b>CoVN-3</b> uniquely displays mechanochromism.
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The selective mechanical responsiveness is closely associated with enhanced π-conjugation and more favorable intermolecular orbital coupling in the low-torsion conformer. These findings demonstrate that water-mediated coordination-environment modulation can influence charge-transfer pathways and radical generation in CPs, establishing coordination geometry reconstruction as a viable internal lever for adaptive, multi-responsive framework materials.
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- DOI doi.org/10.1021/polymscitech.6c00114.s003 ↗
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- OAI-PMH record api.figshare.com/v2/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai%3Af… ↗
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- Astronomy & Astrophysics · Chemistry · Computer Science & AI · Earth & Environmental Science · Economics & Finance · Engineering · Humanities · Life Sciences · Materials Science · Medicine & Health · Ocean & Atmospheric Science · Psychology & Behavioral Science · Social Science
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- Polymerisation mechanisms 79%
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Provenance · 1 source records, 19 field assertions
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