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Preparation of Monodomain Liquid Crystal Elastomers and Liquid Crystal Elastomer Nanocomposites
Published on: February 6, 2016
Novel tetramethoxy resorcinarene bis-crown ethers
Kirsi Salorinne1, Maija Nissinen
1Nanoscience Center, Department of Chemistry, University of Jyväskylä, P.O. Box 35, FIN-40014 JYU, Finland.
Organic Letters
|November 17, 2006
Summary
New resorcinarene bis-crown ethers were synthesized and characterized. The compound BC5 demonstrated the ability to bind two alkali metal cations simultaneously within its structure, confirmed by spectroscopy and crystallography.
Area of Science:
- Supramolecular Chemistry
- Organic Synthesis
- Crystal Engineering
Background:
- Resorcinarene derivatives are versatile macrocyclic hosts.
- Crown ethers are known for their cation-binding properties.
- Combining these scaffolds can lead to novel host-guest systems.
Purpose of the Study:
- To synthesize and characterize novel tetramethoxy resorcinarene bis-crown ethers.
- To investigate the alkali metal cation complexation behavior of these new compounds.
- To elucidate the structural basis of cation binding.
Main Methods:
- Organic synthesis for the preparation of BC4 and BC5.
- Proton Nuclear Magnetic Resonance (1H NMR) spectroscopy for complexation studies.
- X-ray crystallography for detailed structural analysis.
Main Results:
- Successful synthesis and characterization of tetramethoxy resorcinarene bis-crown ethers BC4 and BC5.
- Demonstration of BC5's capability to bind alkali metal cations.
- X-ray crystallography revealed simultaneous accommodation of two cations within BC5's crown pockets and resorcinarene skeleton.
Conclusions:
- The synthesized resorcinarene bis-crown ethers are effective ligands for alkali metal cations.
- Compound BC5 exhibits unique binding properties, accommodating multiple cations.
- Structural insights from X-ray crystallography explain the observed complexation behavior.
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