journal article·2023-03-28

Coordination Sphere Flexibility Leads to Elastic Deformation in a One-Dimensional Coordination Polymer Crystal

Sajesh P. Thomas, Anna Worthy, Espen Z. Eikeland, Amy J. Thompson, Arnaud Grosjean, Kasper Tolborg, Lennard Krause, Kunihisa Sugimoto, Mark A. Spackman, John C. McMurtrie, Jack K. Clegg, Bo B. Iversen

Chemistry of Materials· Volume 35· Issue 6
Publisher page

Abstract

Coordination polymers exhibiting mechanical flexibility including elastic or plastic bending are rare. Here, we report an example of a mechanically flexible one-dimensional coordination polymer that shows elastic bending. Quantitative insights on the inter and intra-chain bonding as well as structural flexibility from a combination of techniques including variable temperature single crystal X-ray diffraction (XRD), high-pressure crystallography (ambient─15 GPa), synchrotron micro-XRD mapping of the bent crystal, and high-resolution synchrotron X-ray charge density analysis show that the helical coordination polymer behaves like a spring when subjected to external stimuli. Changes that occur with the variation of temperature, pressure, or bending, however, result in very different mechanistic changes. The exceptional coordination sphere flexibility rendered by the presence of Jahn–Teller distorted coordination bonds leads to the flexibility of the polymer.
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Research context

OpenAlex topics: Metal-Organic Frameworks: Synthesis and Applications · Crystallography and molecular interactions · Magnetism in coordination complexes

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Chemistry and iNano, Aarhus University, Langelandsgade 140, Aarhus 8000, Denmark

Department of Chemistry, Indian Institute of Technology Delhi, New Delhi 110016, India

School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, QLD 4072, Australia

School of Molecular Sciences, University of Western Australia, Perth, WA 6009, Australia

Department of Materials, Imperial College London, Exhibition Road, London SW7 2AZ, United Kingdom

Japan Synchrotron Radiation Research Institute (JASRI), Sayo-gun 679-5198, Japan

School of Chemistry and Physics and Centre for Materials Science, Queensland University of Technology (QUT), Brisbane, QLD 4001, Australia

Funding

H2020 Marie Sklodowska-Curie Actions · Australian Research Council · Villum Fonden · Australian Institute of Nuclear Science and Engineering · Queensland University of Technology · University of Queensland

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