Carregant...
Tipus de document
Treball de fi de grauData de publicació
Llicència de publicació
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/56285
On the supramolecular properties of sulphonated self-assembling porphyrins: Chirality and deracemization tests
Títol de la revista
Autors
Director/Tutor
ISSN de la revista
Títol del volum
Recurs relacionat
Resum
Along this final grade project acid-base processes of porphyrin 1, supramolecular aggregation on acidic media and spontaneous symmetry breaking processes have been studied by UV-Vis and CD.
An acid-base titration of porphyrin 1 has been done and the spectral shapes of the three monomeric species of the studied porphyrin (1-a, 1-b and 1-c) have been defined.
Usually, the monoprotonated form of the porphyrin is undistinguishable from the diprotonated species due to the similar pKa values; Both in water and in DMSO it has been detected that the pKa3 and pKa4 values are much more differentiated than usual in structurally similar porphyrins (2 and 3). Even though, only the acidification process on DMSO has shown three different tendencies on the spectral changes. The pKa values for the protonation equilibria of 1 have been determined...
Descripció
Treballs Finals de Grau de Química, Facultat de Química, Universitat de Barcelona, Any: 2014, Tutor: Dr. Joaquim Crusats Aliguer
Matèries (anglès)
Citació
Col·leccions
Citació
DURAN CORBERA, Anna. On the supramolecular properties of sulphonated self-assembling porphyrins: Chirality and deracemization tests. [consulta: 23 de gener de 2026]. [Disponible a: https://hdl.handle.net/2445/56285]