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Synthesis, Characterization, and Self-Assembly of a Tetrathiafulvalene (TTF)–Triglycyl Derivative

AutorPérez-Rentero, Sonia; Eritja Casadellà, Ramón; Häring, Marleen; Saldías, César; Díaz Díaz, David
Palabras claveTetrathiafulvalene
Triglycyl peptide
Self-assembly
Organogel
Fecha de publicación26-abr-2018
EditorMolecular Diversity Preservation International
CitaciónApplied Sciences 8(5): 671 (2018)
ResumenIn 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 ≈ 5–50 g/L) and thermal gel-to-sol transition temperatures (Tgel) (range ≈ 36–51 °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 I2 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.
Versión del editorhttp://dx.doi.org/10.3390/app8050671
URIhttp://hdl.handle.net/10261/164255
DOI10.3390/app8050671
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