Enabling Dual Phosphorescence by Locating a Flexible Ligand in Zn-Based Hybrid Frameworks.
J Phys Chem Lett
; 13(30): 6975-6980, 2022 Aug 04.
Article
em En
| MEDLINE
| ID: mdl-35881076
ABSTRACT
Room-temperature phosphorescence (RTP) materials with recognizable afterglow property have gained widespread attraction. Multicolor RTP has added benefits in multiplexed biological labeling, a zero background ratiometric sensor, a multicolor display, and other fields. However, it is a great challenge to prepare multicolor RTP from a single-component compound according to Kasha's rule. Herein, we propose a strategy to design multicolor RTP in a metal-organic hybrid framework through constructing chromophores in both isolated state and dimer state using a flexible tetradentate ligand. Two compounds were synthesized that presented blue and green dual phosphorescence with different lifetimes at ambient conditions. The photoluminescence mechanism has been thoroughly studied by structure-property analysis. This study provides various possibilities to prepare high-performing RTP materials by the rational design and synthesis of similar compounds.
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01-internacional
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MEDLINE
Idioma:
En
Ano de publicação:
2022
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Article