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Issue 36, 2014
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Eu@COK-16, a host sensitized, hybrid luminescent metal–organic framework

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Abstract

A new concept of luminescent host–guest materials was developed by introduction of Eu3+ into COK-16, a HKUST-1 type hybrid metal–organic framework (MOF) with cation exchange properties. In Eu@COK-16, the luminescent ion resides in the pore system of the MOF. The luminescence properties of Eu@COK-16 have been studied based on excitation and emission, allowing analysis of intramolecular energy-transfer processes from the COK-16 host to the exchanged Eu3+ ions. Both the framework trimesate (BTC) and encapsulated [PW12O40]3− ions contribute to energy transfer. Since the antenna molecules (BTC) are part of the framework structure and [PW12O40]3− ions only partly occupy one of the three types of cavities in the structure, a large fraction of the pore volume in this host sensitized luminescent MOF remains available for catalysis applications or adsorption of additional sensitizing molecules. The material structure was determined from a combination of elemental analysis, XAS, XRD, electron and luminescence spectroscopy.

Graphical abstract: Eu@COK-16, a host sensitized, hybrid luminescent metal–organic framework

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Publication details

The article was received on 26 Mar 2014, accepted on 09 May 2014 and first published on 09 May 2014


Article type: Paper
DOI: 10.1039/C4DT00899E
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Dalton Trans., 2014,43, 13480-13484

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    Eu@COK-16, a host sensitized, hybrid luminescent metal–organic framework

    D. Mustafa, I. G. N. Silva, S. R. Bajpe, J. A. Martens, C. E. A. Kirschhock, E. Breynaert and H. F. Brito, Dalton Trans., 2014, 43, 13480
    DOI: 10.1039/C4DT00899E

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