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A new two-dimensional layered germanate with in situ embedded carbon dots for optical temperature sensing
Inorganic Chemistry Frontiers ( IF 6.1 ) Pub Date : 2017-11-07 00:00:00 , DOI: 10.1039/c7qi00602k
Jiancong Liu 1, 2, 3, 4 , Xiaoyan Ren 4, 5, 6, 7, 8 , Yan Yan 1, 2, 3, 4 , Ning Wang 1, 2, 3, 4 , Shuang Wang 1, 2, 3, 4 , Hongyue Zhang 1, 2, 3, 4 , Jiyang Li 1, 2, 3, 4 , Jihong Yu 1, 2, 3, 4, 9
Affiliation  

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.

中文翻译:

一种新的二维分层锗酸盐,具有原位嵌入的碳点,用于光学温度感测

新的德国人| H 2(C 4 N 3 H 13)| 3在溶剂热条件下,使用二亚乙基三胺作为结构导向剂合成了[Ge 7 O 14.5 F 2 ] [Ge 7 O 14 F 3 ]·2.5H 2 O(表示为JLG-16)。单晶结构分析揭示了JLG-16结晶的单斜晶系空间群C ^ 2 / C ^一个= 38.2008(15)A,b = 8.8262(4),C ^ = 31.1789(13)A,和β= 108.5470(10)°。它的结构由4和5配位的Ge 7簇组成。的4-和交替连接5配位的Ge 7簇产生了一个双层结构具有16位和10环通道和低的骨架密度(每1000埃的Ge 11.2 3)。在溶剂热结晶过程中,母液中形成的碳点(CD)原位嵌入JLG-16晶体中。因此,所得的CDs @ JLG-16复合材料表现出依赖于激发和温度响应的光致发光性能,从而有可能用于光学温度感测。
更新日期:2017-11-23
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