NHC gold complexes with luminescent properties
| Autor: | Johnson, Alice, Gimeno, M. Concepción, Laguna, Antonio |
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| Rok vydání: | 2015 |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname |
| Popis: | Resumen del póster presentado a la XXXV Reunión Bienal de la Real Sociedad Española de Química celebrada en A Coruña del 19 al 23 de julio de 2015. Allenyl-gold complexes derived from propargyl functionalised phosphonium salts are a novel class of organometallic compounds which were recently found to be stable and isolable, displaying an interesting regioselectivity[1]. N-heterocyclic carbene (NHC) complexes of gold are well-known and of great importance in organic and organometallic chemistry. They have attracted a lot of attention due to their diverse catalytic, biological, medicinal and optical properties[2-4]. Incorporation of the propargyl fragment into imidazolium salts allows the formation of a series of NHC precursors which also have the capability to form allenyl complexes. The introduction of an additional donor site, such as a pyridine, into the scaffold can provide stability to the complex through chelation but can also allow coordination of an additional metal ion, and thus the formation of polynuclear complexes with enhanced optical properties. A series of NHC gold complexes have been prepared from propargyl functionalised imidazolium salts. Further studies on the reactivity of the complexes in both the central carbene functionality and the propargyl side arms together with the emissive properties of the complexes have been carried out. |
| Databáze: | OpenAIRE |
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