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A New Two-Dimensional Layered Germanate with In-situ Embedded Carbon Dots for Optical Temperature Sensing

Abstract

A new germanate |H2(C4N3H13)|3[Ge7O14.5F2][Ge7O14F3]•2.5H2O (denoted as JLG-16) has been synthesized by using diethylenetriamine as the structure-directing agent under solvothermal conditions. Single-crystal structural analysis reveals that JLG-16 crystallizes in the monoclinic space group C2/c with a = 38.2008(15) Å, b = 8.8262(4) Å, c = 31.1789(13) Å, and β = 108.5470(10)°. Its structure is built up from 4- and 5- coordinated Ge7 clusters. The alternating connection of 4- and 5-coordinated Ge7 clusters gives rise to a double-layered structure with 16- and 10-ring channels and a low framework density (11.2 Ge/1000 Å3). Carbon dots (CDs) formed in the mother liquid are in situ embedded in the JLG-16 crystals during the solvothermal crystallization process. The resulting CDs@JLG-16 composite thus exhibits excitation-dependent and temperature-responsive photoluminescent performances, which makes it possible to be used in optical temperature sensing.

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Publication details

The article was received on 27 Sep 2017, accepted on 06 Nov 2017 and first published on 07 Nov 2017


Article type: Research Article
DOI: 10.1039/C7QI00602K
Citation: Inorg. Chem. Front., 2017, Accepted Manuscript
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    A New Two-Dimensional Layered Germanate with In-situ Embedded Carbon Dots for Optical Temperature Sensing

    J. liu, X. Ren, Y. Yan, N. Wang, S. Wang, H. Zhang, J. Li and J. Yu, Inorg. Chem. Front., 2017, Accepted Manuscript , DOI: 10.1039/C7QI00602K

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