Issue 19, 2016

Silver-induced reconstruction of an adeninate-based metal–organic framework for encapsulation of luminescent adenine-stabilized silver clusters

Abstract

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.

Graphical abstract: Silver-induced reconstruction of an adeninate-based metal–organic framework for encapsulation of luminescent adenine-stabilized silver clusters

Supplementary files

Article information

Article type
Paper
Submitted
19 jan. 2016
Accepted
29 mar. 2016
First published
29 mar. 2016
This article is Open Access
Creative Commons BY-NC license

J. Mater. Chem. C, 2016,4, 4259-4268

Silver-induced reconstruction of an adeninate-based metal–organic framework for encapsulation of luminescent adenine-stabilized silver clusters

D. Jonckheere, E. Coutino-Gonzalez, W. Baekelant, B. Bueken, H. Reinsch, I. Stassen, O. Fenwick, F. Richard, P. Samorì, R. Ameloot, J. Hofkens, M. B. J. Roeffaers and D. E. De Vos, J. Mater. Chem. C, 2016, 4, 4259 DOI: 10.1039/C6TC00260A

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