Abstract
The unique monomer and excimer fluorescence emissions of pyrene were first exploited as distinctly photophysical signals to identify the possible diastereomers of guests within nor-seco-cucurbit[10]uril (NS-CB[10]) cavities. Further experiments revealed that balancing the hydrophilic and hydrophobic effects of the guest in aqueous solution can improve the molecular recognition and binding ability of NS-CB[10].
Highlights
Host–guest interactions that trigger molecular recognition are a current topic of interest
The thermodynamic parameters obtained in the present study suggest that the rigidify cavity structure such as host-2 is benefit for the classical hydrophobic effect of guest in aqueous solution
We evaluated the molecular recognition triggered by a novel host–guest interaction of NS-CB[10]-based host-1 and host-2
Summary
Host–guest interactions that trigger molecular recognition are a current topic of interest. In the case of the 1H NMR titration experiments for host–guest interactions of G1·host-2, the chemical shift changes in G1 with increasing host-2 concentration are similar to those observed in the host-1 systems.
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