Aggregates of cucurbituril complexes in the gas phase
José P Da Silva1, Nithyanandhan Jayaraj, Steffen Jockusch
1Universidade do Algarve, Faculdade de Ciências e Tecnologia, Campus de Gambelas, 8005-139 Faro, Portugal.
Cucurbit[n]uril (CB) complexes self-organize, forming self-associated structures. This self-association is influenced by whether guest molecules are present and what type they are.
Area of Science:
- Supramolecular Chemistry
- Analytical Chemistry
Background:
- Cucurbit[n]urils (CBs) are macrocyclic hosts known for their unique binding properties.
- Understanding the self-organization of CB complexes is crucial for designing advanced molecular assemblies.
Purpose of the Study:
- To investigate the self-organization behavior of cucurbit[n]uril (n=7, 8) complexes.
- To determine the influence of guest molecules on the self-association of CB complexes.
Main Methods:
- Electrospray mass spectrometry (ESI-MS) was employed to probe the self-organization.
- Analysis of CB complex formation in the presence and absence of various guest molecules.
Main Results:
- Cucurbit[n]uril (CB) complexes exhibit a general tendency for self-organization.
- The degree of self-association is dependent on the presence and nature of encapsulated guest molecules.
- Specific guest molecules can modulate the self-assembly of CB complexes.
Conclusions:
- Self-organization is an inherent characteristic of cucurbit[n]uril (CB) complexes.
- Guest molecule inclusion provides a mechanism to control the self-assembly of CB systems.
- These findings offer insights into the rational design of supramolecular structures using CBs.
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