Germanium-8-Hydroxyquinoline hydroxides: Synthesis, structure and luminescence properties
| Autor: | Yu Ping Cai |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Thermogravimetric analysis
Photoluminescence 010405 organic chemistry Scanning electron microscope chemistry.chemical_element Germanium 010402 general chemistry 01 natural sciences 0104 chemical sciences Inorganic Chemistry chemistry.chemical_compound Crystallography chemistry Materials Chemistry Hydroxide Physical and Theoretical Chemistry Luminescence Spectroscopy Single crystal |
| Zdroj: | Inorganica Chimica Acta. 489:211-216 |
| ISSN: | 0020-1693 |
| DOI: | 10.1016/j.ica.2019.02.032 |
| Popis: | A new germanium hydroxide coordinated by 8-Hydroxyquinoline (8-HQ), C18H14GeN2O4 (Hereafter, GeHQ1) was synthesized via either a hydrothermal or common solution approach. Its structure was determined with both powder XRD and single crystal X-ray diffraction techniques. GeHQ1 crystallizes in orthorhombic symmetry, space group Pbca (No. 61) with unit-cell parameters: a = 8.7537(5) A, b = 13.9817(7) A, c = 24.8775(13) A, and V = 3044.8(3) A3, Z = 8, R = 0.0337 for reflections with I >2 sigma(I) and wR = 0.0803. The structure of GeHQ1 is built up from one germanium metal center octahedrally coordinating with two 8-Hydroxyquinoline anions (8-Q) and two hydroxyl groups and each two adjacent building units are held into a dimer via extensive hydrogen-bonding interaction between two relatively closer hydroxyl groups (2.936 A) of two adjacent molecules. The crystals were also studied by SEM (scanning electron microscopy), EDS (energy dispersive analysis of X-rays spectroscopy), FT-IR spectrum and TGA (Thermogravimetric analysis). The photoluminescence properties were investigated in room temperature as well as lower temperature (14 K). |
| Databáze: | OpenAIRE |
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