Perez-Rentero, Sonia and Eritja, Ramon and Haering, Marleen and Saldias, Cesar and Diaz, David Diaz (2018) Synthesis, Characterization, and Self-Assembly of a Tetrathiafulvalene (TTF)-Triglycyl Derivative. APPLIED SCIENCES-BASEL, 8 (5): 671. ISSN 2076-3417,
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In this work, we describe the synthesis, characterization, and self-assembly properties of a new tetrathiafulvalene (TTF)-triglycyl low-molecular-weight (LMW) gelator. Supramolecular organogels were obtained in various solvents via a heating-cooling cycle. Critical gelation concentrations (CGC) (range approximate to 5-50 g/L) and thermal gel-to-sol transition temperatures (T-gel) (range approximate to 36-51 degrees C) were determined for each gel. Fourier transform infrared (FT-IR) spectroscopy suggested that the gelator is also aggregated in its solid state via a similar hydrogen-bonding pattern. The fibrillar microstructure and viscoelastic properties of selected gels were demonstrated by means of field-emission electron microscopy (FE-SEM) and rheological measurements. As expected, exposure of a model xerogel to I-2 vapor caused the oxidation of the TTF unit as confirmed by UV-vis-NIR analysis. However, FT-IR spectroscopy showed that the oxidation was accompanied with concurrent alteration of the hydrogen-bonded network.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | STIMULI RESPONSIVE GELS; MASS ORGANIC GELATORS; BUILDING-BLOCKS; MOLECULAR CONDUCTORS; BONDING INTERACTIONS; SUPRAMOLECULAR GELS; ACID-DERIVATIVES; ELECTRON-DONORS; SOFT MATTER; ORGANOGELS; tetrathiafulvalene; triglycyl peptide; self-assembly; organogel |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Organische Chemie > Arbeitskreis Prof. Dr. David Díaz Díaz |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 17 Mar 2020 11:19 |
| Last Modified: | 17 Mar 2020 11:19 |
| URI: | https://pred.uni-regensburg.de/id/eprint/14602 |
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