Authors: Hardy, Matthias
Tessarolo, Jacopo
Holstein, Julian J.
Struch, Niklas
Wagner, Norbert
Weisbarth, Ralf
Engeser, Marianne
Beck, Johannes
Horiuchi, Shinnosuke
Clever, Guido H.
Lützen, Arne
Title: A family of heterobimetallic cubes shows spin-crossover behaviour near room temperature
Language (ISO): en
Abstract: Using 4-(4′-pyridyl)aniline as a simple organic building block in combination with three different aldehyde components together with metal(II) salts gave three different Fe8Pt6-cubes and their corresponding Zn8Pt6 analogues by employing the subcomponent self-assembly approach. Whereas the use of zinc(II) salts gave rise to diamagnetic cages, iron(II) salts yielded metallosupramolecular cages that show spin-crossover behaviour in solution. The spin-transition temperature T1/2 depends on the incorporated aldehyde component, giving a construction kit for the deliberate synthesis of spin-crossover compounds with tailored transition properties. Incorporation of 4-thiazolecarbaldehyde or N-methyl-2-imidazole-carbaldehyde yielded cages that undergo spin-crossover around room temperature whereas the cage obtained using 1H-4-imidazolecarbaldehyde shows a spin-transition at low temperatures. Three new structures were characterized by synchrotron X-ray diffraction and all structures were characterized by mass spectrometry, NMR and UV/Vis spectroscopy.
Subject Headings: Heterobimetallic cages
Metallosupramolecular chemistry
Spin crossover
Subcomponent self-assembly
Issue Date: 2021-08-12
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Appears in Collections:Lehrstühle für Anorganische Chemie

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