Crown ethers strongly bind certain cations, forming denticity of the polyether influences the affinity of the crown ether for various cations.
22.
In particular, azobenzenes incorporated into crown ethers give switchable receptors and azobenzenes in monolayers can provide light-controlled changes in surface properties.
23.
PTs with pendant crown ether functionalities exhibit properties that vary with the alkali metal . and main-chain ( Figure 8 ).
24.
18-Crown-6 has a high affinity for the hydronium ion H 3 O +, as it can fit inside the crown ether.
25.
A well known metal-templating was described by Charles Pederson in his synthesis of various crown ethers using metal cations as template.
26.
Is it ( theorically ) possible to form 3-D ether ( ? ) structures, just like Crown ethers are 2-D ones?
27.
Crown ethers strongly bind certain cations, forming denticity of the polyether influences the affinity of the crown ether for various cations.
28.
An example of this approach used bis-bipyridinium salts which form strong complexes threaded through crown ether bis ( " para "-phenylene )-34-crown-10.
29.
Their use of potassium hydride in the cation s corresponding crown ether quickly replaced thermal conditions as the default approach for most applications.
30.
If the Li + ions is complexed with the crown ether 12-crown-4, the resulting diorganylcuprate anions adopt a linear coordination geometry at copper.
