Tunable Proton Conductivity and Color in a Nonporous Coordination Polymer via Lattice Accommodation to Small Molecules

Abstract Nonporous coordination polymers (npCPs) able to accommodate molecules through internal lattice reorganization are uncommon materials with applications in sensing and selective gas adsorption. Proton conduction, extensively studied in the analogue metal‐organic frameworks under high‐humidity...

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Autores principales:	Aysegul Develioglu, Esther Resines‐Urien, Roberta Poloni, Lucía Martín‐Pérez, Jose Sanchez Costa, Enrique Burzurí
Formato:	article
Lenguaje:	EN
Publicado:	Wiley 2021
Materias:	coordination polymers nonporous proton transport vapochromic materials Science Q
Acceso en línea:	https://doaj.org/article/f43bcafbda3f471186b2695768ae214c
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spelling	oai:doaj.org-article:f43bcafbda3f471186b2695768ae214c2021-11-17T08:40:31ZTunable Proton Conductivity and Color in a Nonporous Coordination Polymer via Lattice Accommodation to Small Molecules2198-384410.1002/advs.202102619https://doaj.org/article/f43bcafbda3f471186b2695768ae214c2021-11-01T00:00:00Zhttps://doi.org/10.1002/advs.202102619https://doaj.org/toc/2198-3844Abstract Nonporous coordination polymers (npCPs) able to accommodate molecules through internal lattice reorganization are uncommon materials with applications in sensing and selective gas adsorption. Proton conduction, extensively studied in the analogue metal‐organic frameworks under high‐humidity conditions, is however largely unexplored in spite of the opportunities provided by the particular sensitivity of npCPs to lattice perturbations. Here, AC admittance spectroscopy is used to unveil the mechanism behind charge transport in the nonporous 1·2CH3CN. The conductance in the crystals is found to be of protonic origin. A vehicle mechanism is triggered by the dynamics of the weakly coupled acetonitrile molecules in the lattice that can be maintained by a combination of thermal cycles, even at low humidity levels. An analogue 1·pyrrole npCP is formed by in situ exchange of these weakly bound acetonitrile molecules by pyrrole. The color and conduction properties are determined by the molecules weakly bonded in the lattice. This is the first example of acetonitrile‐mediated proton transport in an npCP showing distinct optical response to different molecules. These findings open the door to the design of switchable protonic conductors and capacitive sensors working at low humidity levels and with selectivity to different molecules.Aysegul DeveliogluEsther Resines‐UrienRoberta PoloniLucía Martín‐PérezJose Sanchez CostaEnrique BurzuríWileyarticlecoordination polymersnonporousproton transportvapochromic materialsScienceQENAdvanced Science, Vol 8, Iss 22, Pp n/a-n/a (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	coordination polymers nonporous proton transport vapochromic materials Science Q
spellingShingle	coordination polymers nonporous proton transport vapochromic materials Science Q Aysegul Develioglu Esther Resines‐Urien Roberta Poloni Lucía Martín‐Pérez Jose Sanchez Costa Enrique Burzurí Tunable Proton Conductivity and Color in a Nonporous Coordination Polymer via Lattice Accommodation to Small Molecules
description	Abstract Nonporous coordination polymers (npCPs) able to accommodate molecules through internal lattice reorganization are uncommon materials with applications in sensing and selective gas adsorption. Proton conduction, extensively studied in the analogue metal‐organic frameworks under high‐humidity conditions, is however largely unexplored in spite of the opportunities provided by the particular sensitivity of npCPs to lattice perturbations. Here, AC admittance spectroscopy is used to unveil the mechanism behind charge transport in the nonporous 1·2CH3CN. The conductance in the crystals is found to be of protonic origin. A vehicle mechanism is triggered by the dynamics of the weakly coupled acetonitrile molecules in the lattice that can be maintained by a combination of thermal cycles, even at low humidity levels. An analogue 1·pyrrole npCP is formed by in situ exchange of these weakly bound acetonitrile molecules by pyrrole. The color and conduction properties are determined by the molecules weakly bonded in the lattice. This is the first example of acetonitrile‐mediated proton transport in an npCP showing distinct optical response to different molecules. These findings open the door to the design of switchable protonic conductors and capacitive sensors working at low humidity levels and with selectivity to different molecules.
format	article
author	Aysegul Develioglu Esther Resines‐Urien Roberta Poloni Lucía Martín‐Pérez Jose Sanchez Costa Enrique Burzurí
author_facet	Aysegul Develioglu Esther Resines‐Urien Roberta Poloni Lucía Martín‐Pérez Jose Sanchez Costa Enrique Burzurí
author_sort	Aysegul Develioglu
title	Tunable Proton Conductivity and Color in a Nonporous Coordination Polymer via Lattice Accommodation to Small Molecules
title_short	Tunable Proton Conductivity and Color in a Nonporous Coordination Polymer via Lattice Accommodation to Small Molecules
title_full	Tunable Proton Conductivity and Color in a Nonporous Coordination Polymer via Lattice Accommodation to Small Molecules
title_fullStr	Tunable Proton Conductivity and Color in a Nonporous Coordination Polymer via Lattice Accommodation to Small Molecules
title_full_unstemmed	Tunable Proton Conductivity and Color in a Nonporous Coordination Polymer via Lattice Accommodation to Small Molecules
title_sort	tunable proton conductivity and color in a nonporous coordination polymer via lattice accommodation to small molecules
publisher	Wiley
publishDate	2021
url	https://doaj.org/article/f43bcafbda3f471186b2695768ae214c
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_version_	1718425709841481728

Tunable Proton Conductivity and Color in a Nonporous Coordination Polymer via Lattice Accommodation to Small Molecules

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