Luminescent gold(I) supramolecular assemblies on materials and biological chemistry
[eng] During the last years, the research group where this Doctoral Thesis has been carried out has been pioneer in the development of different gold(I) complexes and resulting supramolecular assemblages with a wide variety of applications. The starting point of this intensive development of systems...
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| Tipo de recurso: | tesis doctoral |
| Fecha de publicación: | 2021 |
| País: | España |
| Institución: | Universidad de Barcelona |
| Repositorio: | Dipòsit Digital de la UB |
| OAI Identifier: | oai:diposit.ub.edu:2445/181168 |
| Acceso en línea: | https://hdl.handle.net/2445/181168 http://hdl.handle.net/10803/672744 |
| Access Level: | acceso abierto |
| Palabra clave: | Química supramolecular Or Luminescència Supramolecular chemistry Gold Luminescence |
| Sumario: | [eng] During the last years, the research group where this Doctoral Thesis has been carried out has been pioneer in the development of different gold(I) complexes and resulting supramolecular assemblages with a wide variety of applications. The starting point of this intensive development of systems is in the study of a gold(I)-alkynyl system with water- soluble phosphines, which gave rise to the formation of a hydrogel. This example was the precedent for an exhaustive study of the aggregation processes of gold(I) complexes, where modifications in the chromophore or the incorporation of charge in the system gave rise to a wide range of morphologies (rods, vesicles, square, stars ...) with different luminescent properties. Taking into account this precedent, this Doctoral Thesis focuses on using the supramolecular chemistry of gold(I) complexes in order to modulate their luminescent properties, taking a further step in the methodology of establishment by the group and designing and investigating new gold(I) compounds and assemblies that present improved properties and are suitable to be studied in different types of applications, ranging from luminescent materials, molecular recognition or biological applications. These complexes have been rationally designed, where the different parts of the molecular structure were selected for a specific application. Phosphines have been chosen as the second coordination site, since they are ligands that can modulate the solubility in different solvents and the nuclearity of the resulting compounds. Carbenes have also been used to introduce planarity into the final compound. A great variety of techniques have been used to demonstrate the correct formation of organic and organometallic compounds (NMR, IR, ESI, and X-ray diffraction). The supramolecular structures obtained have been duly analyzed by DLS, SEM, UV-vis, fluorescence and SAXS. |
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