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Issue 42, 2018
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Near infrared excitation and emission in rare earth MOFs via encapsulation of organic dyes

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Abstract

We successfully demonstrate that metal–organic frameworks (MOFs) can be designed to be excited and emit within the biological diagnostic window (650–1450 nm). An isoreticular series of anionic rare earth MOFs with fcu topology was synthesized using 10 different rare earth elements (Y3+, Eu3+, Gd3+, Tb3+, Dy3+, Ho3+, Er3+, Tm3+, Yb3+, Lu3+) and common linear ditopic ligands. Five different cationic dye molecules were incorporated into the MOFs via ion exchange. When LDS 750, which exhibits low-energy absorption in the range 450–770 nm, is loaded into an Yb3+-MOF, it can be used as an antenna to sensitize the near-infrared (NIR) emission of Yb3+ centred at 980 nm.

Graphical abstract: Near infrared excitation and emission in rare earth MOFs via encapsulation of organic dyes

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Publication details

The article was received on 17 Jul 2018, accepted on 25 Aug 2018 and first published on 27 Aug 2018


Article type: Edge Article
DOI: 10.1039/C8SC03168A
Chem. Sci., 2018,9, 8099-8102
  • Open access: Creative Commons BY-NC license
    All publication charges for this article have been paid for by the Royal Society of Chemistry

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    Near infrared excitation and emission in rare earth MOFs via encapsulation of organic dyes

    C. Liu, S. V. Eliseeva, T. Luo, P. F. Muldoon, S. Petoud and N. L. Rosi, Chem. Sci., 2018, 9, 8099
    DOI: 10.1039/C8SC03168A

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