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Issue 1, 2018
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A new two-dimensional layered germanate with in situ embedded carbon dots for optical temperature sensing

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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 made up of 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 per 1000 Å3). Carbon dots (CDs) formed in the mother liquid are in situ embedded into the JLG-16 crystals during the solvothermal crystallization process. The resulting CDs@JLG-16 composite thus exhibits excitation-dependent and temperature-responsive photoluminescence performances, which makes it possible to be used in optical temperature sensing.

Graphical abstract: A new two-dimensional layered germanate with in situ embedded carbon dots for optical temperature sensing

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Supplementary files

Article information


Submitted
27 Sep 2017
Accepted
06 Nov 2017
First published
07 Nov 2017

Inorg. Chem. Front., 2018,5, 139-144
Article type
Research Article

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., 2018, 5, 139
DOI: 10.1039/C7QI00602K

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