Diaryl Telluroxides as Reversible Recognition Arrays in Solution.
Zoe Nonie Scheller1, Noel Miszewski1, Felix Brinkmann1
1Fakultät für Chemie, Universität Duisburg-Essen, Universitätsstr. 7, Essen D-45117, Germany.
This study shows that telluroxides form stable dimers in solution via Te···O interactions. This discovery enables the design of new responsive molecular architectures, like stabilized azobenzene derivatives.
Area of Science:
- Supramolecular chemistry
- Organotellurium chemistry
Background:
- Chalcogen bonding is crucial in supramolecular chemistry but limited in solution-phase applications.
- Achieving strong binding often requires multivalent or charged systems.
Purpose of the Study:
- To provide evidence for intermolecular Te···O interactions in diaryl telluroxides in solution.
- To explore the application of these interactions in stabilizing molecular architectures.
Main Methods:
- Quantum chemical calculations
- Diffusion-ordered spectroscopy nuclear magnetic resonance (DOSY NMR)
- Titration studies
Main Results:
- Evidence for intermolecular Te···O interactions in diaryl telluroxides.
- Identification of dimeric diaryl telluroxide species in solution.
- Successful extension of the thermal cis half-life of an azobenzene derivative via intramolecular Te···O stabilization.
Conclusions:
- Diaryl telluroxides form stable dimeric species in solution through Te···O interactions.
- Telluroxide-based systems show potential for creating responsive molecular architectures.
- This work expands the utility of chalcogen bonding in solution-phase supramolecular chemistry.
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