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A Novel Photoluminescent Ag/Cu Cluster Exhibits a Chromic Photoluminescence Response towards Volatile Organic Vapors.
- Source :
-
Molecules (Basel, Switzerland) [Molecules] 2023 Jan 27; Vol. 28 (3). Date of Electronic Publication: 2023 Jan 27. - Publication Year :
- 2023
-
Abstract
- A new Ag/Cu bimetallic cluster [Ag <subscript>10</subscript> Cu <subscript>6</subscript> (bdppthi) <subscript>2</subscript> (C≡CPh) <subscript>12</subscript> (EtOH) <subscript>2</subscript> ](ClO <subscript>4</subscript> ) <subscript>4</subscript> ( 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.
Details
- Language :
- English
- ISSN :
- 1420-3049
- Volume :
- 28
- Issue :
- 3
- Database :
- MEDLINE
- Journal :
- Molecules (Basel, Switzerland)
- Publication Type :
- Academic Journal
- Accession number :
- 36770923
- Full Text :
- https://doi.org/10.3390/molecules28031257