Using room temperature Phosphorescence of Gold(I) complexes for PAHs sensing

The synthesis of two new phosphane-gold(I)-napthalimide complexes has been performed and characterized. The compounds present luminescent properties with denoted room temperature phosphorescence (RTP) induced by the proximity of the gold(I) heavy atom that favors intersystem crossing and triplet sta...

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Detalles Bibliográficos
Autores: Rosental, Marian, Coldman, Richard N., Moro, Artur J., Angurell Purroy, Inmaculada, Gomila, Rosa M., Frontera, Antonio, Lima, João Carlos, Rodríguez Raurell, Laura
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/181251
Acceso en línea:https://hdl.handle.net/2445/181251
Access Level:acceso abierto
Palabra clave:Or
Fosforescència
Hidrocarburs aromàtics policíclics
Gold
Phosphorescence
Polycyclic aromatic hydrocarbons
Descripción
Sumario:The synthesis of two new phosphane-gold(I)-napthalimide complexes has been performed and characterized. The compounds present luminescent properties with denoted room temperature phosphorescence (RTP) induced by the proximity of the gold(I) heavy atom that favors intersystem crossing and triplet state population. The emissive properties of the compounds together with the planarity of their chromophore were used to investigate their potential as hosts in the molecular recognition of different polycyclic aromatic hydrocarbons (PAHs). Naphthalene, anthracene, phenanthrene, and pyrene were chosen to evaluate how the size and electronic properties can affect the host:guest interactions. Stronger affinity has been detected through emission titrations for the PAHs with extended aromaticity (anthracene and pyrene) and the results have been supported by DFT calculation studies.