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Cinnamate-Intercalated Layered Yttrium Hydroxide: UV Light-Responsive Switchable Material.

Maria A Teplonogova1, Alexey D Yapryntsev1, Alexander E Baranchikov1

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Summary

Researchers developed light-responsive host-guest materials using layered yttrium hydroxide and cinnamate anions. UV light altered the interlayer distance, demonstrating potential for switchable devices.

Keywords:
UV-switchinganion exchangeclayshydrothermal treatmentlayered materialsstimuli-responsive

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Area of Science:

  • Materials Science
  • Supramolecular Chemistry
  • Nanotechnology

Background:

  • Stimuli-responsive host-guest materials are gaining interest for switchable devices.
  • Light is a convenient stimulus, influencing material properties via guest molecules.
  • Layered rare earth hydroxides intercalated with photo-switchable anions are promising candidates.

Purpose of the Study:

  • To investigate the potential of layered rare earth hydroxides as stimuli-responsive materials.
  • To demonstrate UV-induced changes in interlayer distance using cinnamate anions.
  • To explore the intercalation of trans- and cis-cinnamate anions in layered yttrium hydroxide.

Main Methods:

  • Intercalation of trans- and cis-cinnamate anions into layered yttrium hydroxide.
  • UV-irradiation of the intercalated material.
  • Measurement of interlayer distance changes.

Main Results:

  • Successfully intercalated both trans- and cis-cinnamate anions into layered yttrium hydroxide.
  • Observed a change in interlayer distance from 21.9 to 20.6 Å upon UV irradiation of trans-cinnamate-intercalated LYH.
  • Demonstrated the stimuli-responsive behavior of layered rare earth hydroxides.

Conclusions:

  • Layered rare earth hydroxides can function as stimuli-responsive materials.
  • UV-switchable anions like cinnamate can modulate the interlayer distance.
  • This work opens possibilities for light-controlled host-guest systems.