Descripción del proyecto
Imitación artificial de los sitios activos de enzimas y superficies
El proyecto MUSYCA, financiado en el marco de las Acciones Skłodowska-Curie, pretende comprender los factores clave que rigen los mecanismos de activación del enlace carbono-hidrógeno (C-H) en el interior de metales de transición binucleares presentes en enzimas o superficies. Uno de los principales objetivos es obtener complejos que contengan entidades M2O con suficiente reactividad para oxidar las uniones C-H. El proyecto empleará una amplia variedad de técnicas analíticas para estudiar los patrones de reactividad y los mecanismos correspondientes que subyacen a la formación de fragmentos M-O y los que implican la formación de enlaces C-O. El proyecto creará asimismo plataformas asimétricas para el desarrollo de complejos heterobimetálicos a fin de estudiar y comprender la sinergia entre dos metales de transición en distintas transformaciones químicas.
Objetivo
MUSYCA - Multimetallic Systems for C-H Activation processes - is a project designed to obtain a better understanding of the key factors governing C-H activation phenomena in multinuclear copper-based cores present in the most efficient frameworks such as enzymes or zeolites like methane monooxygenases (MMOs) or Cu-ZSM-5, respectively. One of the main goals of the project is to obtain complexes containing Cu2O entities, which have not yet been interrogated and are reactive enough to oxidize C-H bonds. These will be employed in the stoichiometric and catalytic transformation of hydrocarbon bonds of numerous substrates, from easily convertible to extremely challenging ones, being methane the stretch goal. The reactivity patterns and the corresponding mechanisms underlying the formation of Cu-O fragments as well as those involving the formation of C-O bonds will be studied by using a wide variety of analytical techniques. To this end, robust 2,7-substituted [1,8]naphthyridine scaffolds will be employed as dinucleating ligands, since they resemble the environment surrounding dinuclear active sites in natural enzymes and they facilitate a close interaction between the metals, at the same time that the chelating groups in positions 2 and 7 help to stabilize the resulting complexes. These ligands will also be employed in the other major target of the project, which consists of the development of dinuclear Pt-Cu compounds so as to evaluate the metal cooperativity in a modified Shilov system for C-H activation. Only a few studies have been carried out on the role of copper in the Shilov-type C-H functionalization reaction, showing its great potential for improving the catalytic performance of the active species involved in the process. However, the role of Pt as active catalyst and Cu as oxidant in the same complex has never been investigated, and the aforementioned frameworks developed in the labs of Prof. Tilley are ideal for this purpose.
Ámbito científico
- natural scienceschemical sciencesinorganic chemistryinorganic compounds
- natural scienceschemical sciencesorganic chemistryhydrocarbons
- natural scienceschemical sciencescatalysis
- natural scienceschemical sciencesorganic chemistryaliphatic compounds
- natural sciencesbiological sciencesbiochemistrybiomoleculesproteinsenzymes
Programa(s)
Régimen de financiación
MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)Coordinador
41004 Sevilla
España