Journal
JOURNAL OF MATERIALS CHEMISTRY C
Volume 4, Issue 19, Pages 4259-4268Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6tc00260a
Keywords
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Funding
- EU-FP7 SACS project [310651]
- IAP-7 program of the Belgian Federal Government (BELSPO)
- Research Foundation Flanders (FWO)
- FWO
- EU-FP7 project, MULTITUTDES [PIEF-GA-2012-326666]
- Agence Nationale de la Recherche through the LabEx project Chemistry of Complex Systems [ANR-10-LABX-0026_CSC]
- International Center for Frontier Research in Chemistry (icFRC)
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Bright luminescent silver-adenine species were successfully stabilized in the pores of the MOF-69A (zinc biphenyldicarboxylate) metal-organic framework, starting from the intrinsically blue luminescent bio-MOF-1 (zinc adeninate 4,4'-biphenyldicarboxylate). Bio-MOF-1 is transformed to the MOF-69A framework by selectively leaching structural adenine linkers from the original framework using silver nitrate solutions in aqueous ethanol. Simultaneously, bright blue-green luminescent silver-adenine clusters are formed inside the pores of the recrystallized MOF-69A matrix in high local concentrations. The structural transition and concurrent changes in optical properties were characterized using a range of structural, physicochemical and spectroscopic techniques (steady-state and time-resolved luminescence, quantum yield determination, fluorescence microscopy). The presented results open new avenues for exploring the use of MOFs containing luminescent silver clusters for solid-state lighting and sensor applications.
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