Sonochemical synthesis and characterization of new nanostructures cobalt(II) metal-organic complexes derived from the azo-coupling reaction of 4-amino benzoic acid with anthranilic acid, salicylaldehyde and 2-naphtol
| Autor: | Moayed Hosaini Sadr, Mao-Lin Hu, Shiva Hojaghani, Ali Morsali, Xiao-Xue Cheng |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Thermogravimetric analysis
Acoustics and Ultrasonics Inorganic chemistry chemistry.chemical_element 02 engineering and technology Azo coupling 010402 general chemistry 01 natural sciences law.invention Inorganic Chemistry chemistry.chemical_compound law Anthranilic acid Chemical Engineering (miscellaneous) Environmental Chemistry Radiology Nuclear Medicine and imaging Calcination Benzoic acid Organic Chemistry Thermal decomposition 021001 nanoscience & nanotechnology 0104 chemical sciences chemistry Salicylaldehyde 0210 nano-technology Cobalt Nuclear chemistry |
| Zdroj: | Ultrasonics sonochemistry. 37 |
| ISSN: | 1873-2828 |
| Popis: | Nanostructures of three new cobalt(II) complexes, (CoL1)·0.5DMF·1.5MeOH (1), [H2L1=5-(4-Carboxy phenyl azo) anthranilic acid], (Co(L2)2)·1.5MeOH (2), [HL2=5-(4-Carboxy phenyl azo) salicylaldehyde] and (Co(L3)2)·0.5DMF·0.5MeOH (3), [HL3=1-(4-Carboxy phenyl azo) 2-naphtol], have been synthesized by the reaction of H2L1, HL2 and HL3 with Co(OAc)2·4H2O through sonochemical process. Calcination of the nano-sized compounds 1-3 yield Co3O4 nanoparticles at 450°C under air atmosphere. These nanostructures were characterized by X-ray powder diffraction (XRD) and Scanning Electron Microscopy (SEM). Thermal stability of compounds 1-3 was studied by thermogravimetric (TG) and differential thermal analyses (DTA). |
| Databáze: | OpenAIRE |
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