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

Jiancong Liu; Xiaoyan Ren; Yan Yan; Ning Wang; Shuang Wang; Hongyue Zhang; Jiyang Li; Jihong Yu

doi:10.1039/c7qi00602k

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

Jiancong Liu, Xiaoyan Ren, Yan Yan, Ning Wang, Shuang Wang, Hongyue Zhang, Jiyang Li^*, Jihong Yu

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

28 Citations (Scopus)

Abstract

A new germanate H₂(C₄N₃H₁₃)₃[Ge₇O_14.5F₂][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.

Original language	English
Pages (from-to)	139-144
Number of pages	6
Journal	Inorganic Chemistry Frontiers
Volume	5
Issue number	1
DOIs	https://doi.org/10.1039/c7qi00602k
Publication status	Published - Jan 2018
Externally published	Yes

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title = "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) {\AA}, b = 8.8262(4) {\AA}, c = 31.1789(13) {\AA}, 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 {\AA}3). 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.",

author = "Jiancong Liu and Xiaoyan Ren and Yan Yan and Ning Wang and Shuang Wang and Hongyue Zhang and Jiyang Li and Jihong Yu",

note = "Publisher Copyright: {\textcopyright} 2017 the Partner Organisations.",

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doi = "10.1039/c7qi00602k",

language = "English",

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T2 - In situ embedded carbon dots for optical temperature sensing

AU - Liu, Jiancong

AU - Ren, Xiaoyan

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AU - Wang, Ning

AU - Wang, Shuang

AU - Zhang, Hongyue

AU - Li, Jiyang

AU - Yu, Jihong

PY - 2018/1

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N2 - 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.

AB - 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.

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JO - Inorganic Chemistry Frontiers

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

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