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A Mechanistic Perspective on Plastically Flexible Coordination Polymers

Mechanical flexibility in single crystals of covalently bound materials is a fascinating and poorly understood phenomenon. We present here the first example of a plastically flexible one‐dimensional (1D) coordination polymer. The compound [Zn(μ‐Cl)(2)(3,5‐dichloropyridine)(2)](n) is flexible over tw...

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Autores principales: Bhattacharya, Biswajit, Michalchuk, Adam A. L., Silbernagl, Dorothee, Rautenberg, Max, Schmid, Thomas, Feiler, Torvid, Reimann, Klaus, Ghalgaoui, Ahmed, Sturm, Heinz, Paulus, Beate, Emmerling, Franziska
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7155097/
https://www.ncbi.nlm.nih.gov/pubmed/31837270
http://dx.doi.org/10.1002/anie.201914798
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author Bhattacharya, Biswajit
Michalchuk, Adam A. L.
Silbernagl, Dorothee
Rautenberg, Max
Schmid, Thomas
Feiler, Torvid
Reimann, Klaus
Ghalgaoui, Ahmed
Sturm, Heinz
Paulus, Beate
Emmerling, Franziska
author_facet Bhattacharya, Biswajit
Michalchuk, Adam A. L.
Silbernagl, Dorothee
Rautenberg, Max
Schmid, Thomas
Feiler, Torvid
Reimann, Klaus
Ghalgaoui, Ahmed
Sturm, Heinz
Paulus, Beate
Emmerling, Franziska
author_sort Bhattacharya, Biswajit
collection PubMed
description Mechanical flexibility in single crystals of covalently bound materials is a fascinating and poorly understood phenomenon. We present here the first example of a plastically flexible one‐dimensional (1D) coordination polymer. The compound [Zn(μ‐Cl)(2)(3,5‐dichloropyridine)(2)](n) is flexible over two crystallographic faces. Remarkably, the single crystal remains intact when bent to 180°. A combination of microscopy, diffraction, and spectroscopic studies have been used to probe the structural response of the crystal lattice to mechanical bending. Deformation of the covalent polymer chains does not appear to be responsible for the observed macroscopic bending. Instead, our results suggest that mechanical bending occurs by displacement of the coordination polymer chains. Based on experimental and theoretical evidence, we propose a new model for mechanical flexibility in 1D coordination polymers. Moreover, our calculations propose a cause of the different mechanical properties of this compound and a structurally similar elastic material.
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spelling pubmed-71550972020-04-15 A Mechanistic Perspective on Plastically Flexible Coordination Polymers Bhattacharya, Biswajit Michalchuk, Adam A. L. Silbernagl, Dorothee Rautenberg, Max Schmid, Thomas Feiler, Torvid Reimann, Klaus Ghalgaoui, Ahmed Sturm, Heinz Paulus, Beate Emmerling, Franziska Angew Chem Int Ed Engl Communications Mechanical flexibility in single crystals of covalently bound materials is a fascinating and poorly understood phenomenon. We present here the first example of a plastically flexible one‐dimensional (1D) coordination polymer. The compound [Zn(μ‐Cl)(2)(3,5‐dichloropyridine)(2)](n) is flexible over two crystallographic faces. Remarkably, the single crystal remains intact when bent to 180°. A combination of microscopy, diffraction, and spectroscopic studies have been used to probe the structural response of the crystal lattice to mechanical bending. Deformation of the covalent polymer chains does not appear to be responsible for the observed macroscopic bending. Instead, our results suggest that mechanical bending occurs by displacement of the coordination polymer chains. Based on experimental and theoretical evidence, we propose a new model for mechanical flexibility in 1D coordination polymers. Moreover, our calculations propose a cause of the different mechanical properties of this compound and a structurally similar elastic material. John Wiley and Sons Inc. 2020-02-04 2020-03-27 /pmc/articles/PMC7155097/ /pubmed/31837270 http://dx.doi.org/10.1002/anie.201914798 Text en © 2019 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Communications
Bhattacharya, Biswajit
Michalchuk, Adam A. L.
Silbernagl, Dorothee
Rautenberg, Max
Schmid, Thomas
Feiler, Torvid
Reimann, Klaus
Ghalgaoui, Ahmed
Sturm, Heinz
Paulus, Beate
Emmerling, Franziska
A Mechanistic Perspective on Plastically Flexible Coordination Polymers
title A Mechanistic Perspective on Plastically Flexible Coordination Polymers
title_full A Mechanistic Perspective on Plastically Flexible Coordination Polymers
title_fullStr A Mechanistic Perspective on Plastically Flexible Coordination Polymers
title_full_unstemmed A Mechanistic Perspective on Plastically Flexible Coordination Polymers
title_short A Mechanistic Perspective on Plastically Flexible Coordination Polymers
title_sort mechanistic perspective on plastically flexible coordination polymers
topic Communications
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7155097/
https://www.ncbi.nlm.nih.gov/pubmed/31837270
http://dx.doi.org/10.1002/anie.201914798
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