journal article·2020-04-14

Controlling Spin Switching with Anionic Supramolecular Frameworks

Michael C. Pfrunder, Jacob J. Whittaker, Simon Parsons, Boujemaa Moubaraki, Keith S. Murray, Stephen A. Moggach, Neeraj Sharma, Aaron S. Micallef, Jack K. Clegg, John C. McMurtrie

Chemistry of Materials· Volume 32· Issue 7
Publisher page

Abstract

Encasing the classic spin-crossover (SCO) complex cation [Co(terpy)2]2+ in different anionic supramolecular frameworks modulates its SCO behavior, tuning both its T1/2 (shift of up to 200 K) and the cooperativity of the system. The SCO behavior is influenced by the organization of the complex cations within supramolecular anionic frameworks comprising iodoperfluorobenzenes and iodide anions, with tighter packing of complexes leading to a more abrupt transition. This approach for the control of magnetic properties is applicable to any complex with suitable counterions and hence provides significant opportunity for further developing the properties of many such stimuli-responsive complexes, without requiring changes to their chemical structures. The magnetic properties of the materials presented herein are investigated through variable-temperature magnetic susceptibility measurements and variable-temperature and -pressure molecular structure studies.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Magnetism in coordination complexes · Lanthanide and Transition Metal Complexes · Electron Spin Resonance Studies

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

Affiliations

School of Chemistry and Physics, Queensland University of Technology (QUT), 2 George Street, Brisbane, Queensland 4000, Australia

Centre for Materials Science, Queensland University of Technology (QUT), 2 George Street, Brisbane, Queensland 4000, Australia

School of School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Queensland 4072, Australia

Centre for Science at Extreme Conditions and EaStCHEM School of Chemistry, The University of Edinburgh, King’s Buildings, West Mains Road, Edinburgh, Scotland EH9 3FD, U.K.

School of Chemistry, Monash University, Clayton, Victoria 3800, Australia

School of Chemistry, University of New South Wale, Sydney, New South Wales 2052, Australia

Central Analytical Research Facility, Queensland University of Technology (QUT), 2 George Street, Brisbane, Queensland 4000, Australia

Funding

Australian Research Council · Queensland University of Technology · University of Queensland

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