• Media type: Text; E-Article
  • Title: Soluble molecular switches in electrospun nanofibers
  • Contributor: Brehme, Jules [Author]; Kilic, Maximilian Seydi [Author]; Pawlak, Justus [Author]; Renz, Franz [Author]; Sindelar, Ralf Franz [Author]
  • Published: [Cham] : Springer Nature Switzerland, 2024
  • Published in: Interactions 245 (2024), Nr. 1 ; Interactions
  • Issue: published Version
  • Language: English
  • DOI: https://doi.org/10.15488/16591; https://doi.org/10.1007/s10751-024-01842-z
  • Keywords: Triazole ; SCO ; Molecular switches ; Mössbauer ; Electrospinning
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  • Description: Compounds that exhibit the spin crossover effect are known to show a change of spin states through external stimuli. This reversible switching of spin states is accompanied by a change of the properties of the compound. Complexes, like iron (II)-triazole complexes, that exhibit this behavior at ambient temperature are often discussed for potential applications. In previous studies we synthesized iron (II)-triazole complexes and implemented them into electrospun nanofibers. We used Mössbauer spectroscopy in first studies to prove a successful implementation with maintaining spin crossover properties. Further studies from us showed that it is possible to use different electrospinning methods to either do a implementation or a deposition of the synthesized solid SCO material into or onto the polymer nanofibers. We now used a solvent in which both, the used iron (II)-triazole complex [Fe(atrz)3](2 ns)2 and three different polymers (Polyacrylonitrile, Polymethylmethacrylate and Polyvinylpyrrolidone), are soluble. This shall lead to a higher homogeneous distribution of the complex along the nanofibers. Mössbauer spectroscopy and other measurements are therefore in use to show a successful implementation without any significant changes to the complex.
  • Access State: Open Access