Fabrication of highly ordered Cu2+/Fe3+ decorated polyhedral oligomeric silsesquioxane hybrids: How metal coordination influences structure

Georgia Potsi, Jiquan Wu, Giuseppe Portale, Regis Y. N. Gengler, Alessandro Longo, Dimitrios Gournis*, Petra Rudolf

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

Incorporation of isolated metal centers into well-organized nanostructures is a promising route in the development of the next generation of chemical, magnetic and electronic devices. In this work, a layer-by-layer protocol to grow highly ordered thin films of metal-decorated organic-inorganic cage-like polyhedral oligomeric silsesquioxane (POSS) is introduced. The key strategy is to use metal ions (Cu2+ or Fe3+) as linker for the amino-functionalized cage-like POSS, which are self-assembled between arachidic acid layers during Langmuir–Schaefer deposition. The Langmuir–Schaefer films are examined by X-ray photoelectron spectroscopy, X-ray diffraction, grazing incidence wide-angle X-ray scattering and extended X-ray absorption fine structure in order to understand how the coordination of metal ions influences the structure in the course of the layer-by-layer formation of the films.

Original languageEnglish
Pages (from-to)207-215
Number of pages9
JournalJournal of Colloid and Interface Science
Volume572
DOIs
Publication statusPublished - 15-Jul-2020

Keywords

  • Langmuir Schaefer films
  • Silsesquioxanes
  • Metal complexes
  • TRISILANOLISOBUTYL-POSS
  • LANGMUIR-BLODGETT
  • BUILDING-BLOCK
  • COMPLEXES
  • CHEMISTRY
  • IRON(III)
  • LIGANDS
  • DESIGN
  • FILMS

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