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A Temperature-Responsive Smart Europium Metal-Organic Framework Switch for Reversible Capture and Release of Intrinsic Eu 3+ Ions

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Stimuli-responsive structural transformations are emerging as a scaffold to develop a charming class of smart materials. A EuL metal-organic framework (MOF) undergoes a reversible temperature-stimulated single-crystal to
single-crystal transformation, showing a specifi c behavior of fast capture/release of free Eu 3+ in the channels at low and room temperatures. At room temperature, compound 1a is obtained with one free carboxylate group severing
as further hook, featuring one-dimensional square channels fi lled with intrinsic free europium ions. Trigged by lowering the ambient temperature,1b is gained. In 1b , the intrinsic free europium ions can be fast captured by
the carboxylate-hooks anchored in the framework, resulting in the structural change and its channel distortion. To the best of our knowledge, this is the fi rst report of such a rapid and reversible switch stemming from dynamic
control between noncovalent and covalent Eu–ligand interactions. Utilizing EuL MOF to detect highly explosive 2,4,6-trinitrophenol at room temperature and low temperature provides a glimpse into the potential of this material in
fl uorescence sensors.

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Informasi Detail

Judul Seri

Adv. Sci.

No. Panggil

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Penerbit

: The Authors., 2015

Deskripsi Fisik

Adv. Sci. 2015, 2, 1500012

Bahasa

English

ISBN/ISSN

DOI: 10.1002/advs.20

Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

KESEHATAN

Info Detail Spesifik

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Pernyataan Tanggungjawab

Wati/Agus

Versi lain/terkait

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