Iron(II) Spin Crossover Complexes with 4,4′-Dipyridylethyne—Crystal Structures and Spin Crossover with Hysteresis
Three new iron(II) 1D coordination polymers with cooperative spin crossover behavior showing thermal hysteresis loops were synthesized using N<sub>2</sub>O<sub>2</sub> Schiff base-like equatorial ligands and 4,4′-dipyridylethyne as a bridging, rigid axial linker. On...
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MDPI AG
2020-01-01
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Online Access: | https://www.mdpi.com/1420-3049/25/3/581 |
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author | Katja Dankhoff Charles Lochenie Birgit Weber |
author_facet | Katja Dankhoff Charles Lochenie Birgit Weber |
author_sort | Katja Dankhoff |
collection | DOAJ |
description | Three new iron(II) 1D coordination polymers with cooperative spin crossover behavior showing thermal hysteresis loops were synthesized using N<sub>2</sub>O<sub>2</sub> Schiff base-like equatorial ligands and 4,4′-dipyridylethyne as a bridging, rigid axial linker. One of those iron(II) 1D coordination polymers showed a 73 K wide hysteresis below room temperature, which, upon solvent loss, decreased to a still remarkable 30 K wide hysteresis. Single crystal X-ray structures of two iron(II) coordination polymers and <i>T</i>-dependent powder XRD patterns are discussed to obtain insight into the structure property relationship of those materials. |
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institution | Directory Open Access Journal |
issn | 1420-3049 |
language | English |
last_indexed | 2024-04-13T04:41:23Z |
publishDate | 2020-01-01 |
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spelling | doaj.art-4366949c929d4ea78b551c49e427c1d12022-12-22T03:01:58ZengMDPI AGMolecules1420-30492020-01-0125358110.3390/molecules25030581molecules25030581Iron(II) Spin Crossover Complexes with 4,4′-Dipyridylethyne—Crystal Structures and Spin Crossover with HysteresisKatja Dankhoff0Charles Lochenie1Birgit Weber2Department of Chemistry, Inorganic Chemistry IV, University of Bayreuth, Universitätsstr. 30, 95447 Bayreuth, GermanyDepartment of Chemistry, Inorganic Chemistry IV, University of Bayreuth, Universitätsstr. 30, 95447 Bayreuth, GermanyDepartment of Chemistry, Inorganic Chemistry IV, University of Bayreuth, Universitätsstr. 30, 95447 Bayreuth, GermanyThree new iron(II) 1D coordination polymers with cooperative spin crossover behavior showing thermal hysteresis loops were synthesized using N<sub>2</sub>O<sub>2</sub> Schiff base-like equatorial ligands and 4,4′-dipyridylethyne as a bridging, rigid axial linker. One of those iron(II) 1D coordination polymers showed a 73 K wide hysteresis below room temperature, which, upon solvent loss, decreased to a still remarkable 30 K wide hysteresis. Single crystal X-ray structures of two iron(II) coordination polymers and <i>T</i>-dependent powder XRD patterns are discussed to obtain insight into the structure property relationship of those materials.https://www.mdpi.com/1420-3049/25/3/581spin crossoverironschiff base ligandhysteresiscooperative interactions |
spellingShingle | Katja Dankhoff Charles Lochenie Birgit Weber Iron(II) Spin Crossover Complexes with 4,4′-Dipyridylethyne—Crystal Structures and Spin Crossover with Hysteresis Molecules spin crossover iron schiff base ligand hysteresis cooperative interactions |
title | Iron(II) Spin Crossover Complexes with 4,4′-Dipyridylethyne—Crystal Structures and Spin Crossover with Hysteresis |
title_full | Iron(II) Spin Crossover Complexes with 4,4′-Dipyridylethyne—Crystal Structures and Spin Crossover with Hysteresis |
title_fullStr | Iron(II) Spin Crossover Complexes with 4,4′-Dipyridylethyne—Crystal Structures and Spin Crossover with Hysteresis |
title_full_unstemmed | Iron(II) Spin Crossover Complexes with 4,4′-Dipyridylethyne—Crystal Structures and Spin Crossover with Hysteresis |
title_short | Iron(II) Spin Crossover Complexes with 4,4′-Dipyridylethyne—Crystal Structures and Spin Crossover with Hysteresis |
title_sort | iron ii spin crossover complexes with 4 4 dipyridylethyne crystal structures and spin crossover with hysteresis |
topic | spin crossover iron schiff base ligand hysteresis cooperative interactions |
url | https://www.mdpi.com/1420-3049/25/3/581 |
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