Hardy, MatthiasTessarolo, JacopoHolstein, Julian J.Struch, NiklasWagner, NorbertWeisbarth, RalfEngeser, MarianneBeck, JohannesHoriuchi, ShinnosukeClever, Guido H.Lützen, Arne2021-10-072021-10-072021-08-12http://hdl.handle.net/2003/4051310.17877/DE290R-22385Using 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.enhttps://creativecommons.org/licenses/by-nc/4.0/Heterobimetallic cagesIronMetallosupramolecular chemistrySpin crossoverSubcomponent self-assembly540article (journal)