Details

Autor(en) / Beteiligte

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

Titel

A new two-dimensional layered germanate with in situ embedded carbon dots for optical temperature sensingElectronic supplementary information (ESI) available: The crystal data and structure refinement, atomic coordinates and equivalent isotropic displacement parameters. The XRD patterns, scanning electron microscopy image, asymmetric unit, and structure along the [010] direction of the CDs@JLG-16 composite. The TEM image and photoluminescence spectra of the mother liquid of CDs@JLG-16. CCDC 1563

Erscheinungsjahr

2018-01

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• A new germanate |H 2 (C 4 N 3 H 13 )| 3 [Ge 7 O 14.5 F 2 ][Ge 7 O 14 F 3 ]·2.5H 2 O (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 C 2/ 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 Ge 7 clusters. The alternating connection of 4- and 5-coordinated Ge 7 clusters gives rise to a double-layered structure with 16- and 10-ring channels and a low framework density (11.2 Ge per 1000 Å 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. A carbon dots@germanate composite has been synthesized by embedding carbon dots into a double-layered germanate in situ , which exhibits excitation-dependent and temperature-responsive photoluminescence.