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Updated: Jun 27, 2026
09:26
Synthesis and Characterization of Supramolecular Colloids
Published on: April 22, 2016
Synthesis of functional cubes from octavinylsilsesquioxane (OVS)
Ge Cheng1, Nicolas R Vautravers, Russell E Morris
1EaStCHEM, School of Chemistry, University of St. Andrews, St. Andrews, Fife, KY16 9ST, UK.
Organic & Biomolecular Chemistry
|November 29, 2008
Summary
Octavinylsilsesquioxane was functionalized to create novel materials for nanohybrid synthesis. These new POSS derivatives offer diverse chemical handles for advanced applications.
Area of Science:
- Materials Chemistry
- Organic Synthesis
- Nanotechnology
Background:
- Octavinylsilsesquioxane is a cubic molecule with reactive vinyl groups.
- Functionalization of POSS structures is key for developing advanced materials.
Purpose of the Study:
- To synthesize novel octavinylsilsesquioxane derivatives for nanohybrid applications.
- To explore diverse functionalization strategies for POSS molecules.
Main Methods:
- Cross-metathesis and hydrosilylation to introduce bromophenyl groups.
- Sonogashira, Heck, and Grubbs couplings for further functionalization.
- Suzuki coupling precursor synthesis via aryl borate groups.
Main Results:
- Synthesis of various POSS derivatives (POSS A-H) with different terminal groups.
- Demonstration of versatile synthetic routes for POSS functionalization.
- Creation of materials suitable for cross-coupling reactions and nucleophilic substitution.
Conclusions:
- Octavinylsilsesquioxane can be readily modified to yield versatile building blocks.
- The synthesized POSS derivatives show significant potential for nanohybrid materials.
- Diverse end-group functionalization enables tailored material properties.
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