A Novel Photoluminescent Ag/Cu Cluster Exhibits a Chromic Photoluminescence Response towards Volatile Organic Vapors

A new Ag/Cu bimetallic cluster [Ag(10)Cu(6)(bdppthi)(2)(C≡CPh)(12)(EtOH)(2)](ClO(4))(4) (1, bdppthi = N,N′-bis(diphenylphosphanylmethyl)-tetrahydroimidazole) exhibited strong phosphorescent (PL) emission at 644 nm upon excitation at 400 nm. Removal of the coordinated EtOH molecules in 1 resulted in...

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Detalles Bibliográficos
Autores principales: Yang, Wei, Hu, Shengnan, Wang, Yuwei, Yan, Sisi, Cao, Xiang-Qian, Li, Hong-Xi, Young, David James, Ren, Zhi-Gang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Communication
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9921385/
https://www.ncbi.nlm.nih.gov/pubmed/36770923
http://dx.doi.org/10.3390/molecules28031257
Descripción
Sumario:A new Ag/Cu bimetallic cluster [Ag(10)Cu(6)(bdppthi)(2)(C≡CPh)(12)(EtOH)(2)](ClO(4))(4) (1, bdppthi = N,N′-bis(diphenylphosphanylmethyl)-tetrahydroimidazole) exhibited strong phosphorescent (PL) emission at 644 nm upon excitation at 400 nm. Removal of the coordinated EtOH molecules in 1 resulted in derivative 1a, which exhibited significant red-shifted emission at 678 nm. The structure and PL of 1 was restored on exposure to EtOH vapor. Cluster 1a also exhibited a vapor-chromic PL response towards other common organic solvent vapors including acetone, MeOH and MeCN. A PMMA film of 1a was developed as a reusable visible sensor for MeCN.

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