研究目的
Investigating the ability of two tripodal anion receptors to form self-assembled supramolecular structures induced by anions through hydrogen or halogen bonding interactions.
研究成果
The study demonstrates the formation of supramolecular polymers induced by H2PO4? anions through hydrogen or halogen bonding interactions, with the halogen bond donor receptor showing unique excimer emission. The polymers grow following an isodesmic mechanism, and the study provides insights into anion-induced supramolecular polymerization.
研究不足
The study is limited to the specific tripodal anion receptors and anions used, and the findings may not be generalizable to other systems. The mechanisms of polymer formation and excimer emission are complex and may require further investigation.
1：Experimental Design and Method Selection:
Comparative study of two tripodal anion receptors for their ability to form supramolecular structures via hydrogen or halogen bonding.
2：Sample Selection and Data Sources:
Tris-imidazolium receptors synthesized and characterized by 1H NMR, 13C NMR, and FAB mass spectrometry.
3：List of Experimental Equipment and Materials:
NMR spectrometers, UV-Vis and fluorescence spectrometers, dynamic light scattering apparatus, transmission electron microscope.
4：Experimental Procedures and Operational Workflow:
Synthesis of receptors, anion binding studies using NMR and fluorescence spectroscopy, DOSY NMR and DLS experiments to study supramolecular structures.
5：Data Analysis Methods:
Fitting of NMR titration data to determine association constants, analysis of DOSY NMR and DLS data to study polymer formation.
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