Journal
SOFT MATTER
Volume 8, Issue 34, Pages 8865-8872Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2sm25647a
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Funding
- Spanish Ministry of Science and Innovation [CTQ2009-13961]
- Universitat Jaume I-Bancaixa [P1 1B2009-42]
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Organocatalytic gels based on the dipeptide sequence L-Pro-L-Val have been studied by two different FTIR techniques. This suggests a different arrangement of the gelator molecules in the self-assembled fibers depending on the organic solvent employed. In acetonitrile and nitromethane the structure of the supramolecular aggregates is similar and provides similar catalytic properties (supramolecular enhancement of basicity). In contrast, the self-assembled fibers obtained in toluene clearly presented a different molecular arrangement consistent with its different catalytic behaviour (enamine-based catalysis). In addition these gels have been studied by microscopy and rheology.
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