Synthesis and characterisation of Ni(II), Cu(II), and Zn(II) complexes with an acyclic Mannich base functionalised with thioglycolate moiety
| Autor: | Florentina Pătraşcu, Rodica Olar, Mihaela Badea, Luminita Măruţescu, Anca Dumbrava, Maria Nicoleta Grecu, Nicolae Stanica |
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| Rok vydání: | 2013 |
| Předmět: |
Thiocyanate
Inorganic chemistry Infrared spectroscopy Mannich base Condensed Matter Physics law.invention Metal chemistry.chemical_compound chemistry law visual_art Polymer chemistry Proton NMR visual_art.visual_art_medium Moiety Thioglycolic acid Physical and Theoretical Chemistry Electron paramagnetic resonance |
| Zdroj: | Journal of Thermal Analysis and Calorimetry. 115:2447-2455 |
| ISSN: | 1588-2926 1388-6150 |
| Popis: | New complexes ML(CNS)·nH2O [M = Ni, n = 0.5; M = Cu, n = 4.5; M = Zn, n = 0.5, HL: 6-mercapto-(1,4,8,11-tetraazaundecanyl)-6-carboxylic acid)] have been synthesised, chemical analysed, and characterised by different spectroscopic techniques (IR, UV–Vis–NIR, 1H NMR, EPR, ESI–MS), and magnetic measurements. Based on the IR spectra a dinuclear structure with the 1,3-CSN coordination was proposed for Ni(II) and Cu(II) complexes. The dinuclear structure of Cu(II) complex is also consistent with both magnetic behaviour and EPR spectrum. According to TG, DTG and DTA curves the thermal transformations are complex processes, including dehydration, Mannich base oxidative degradation and thiocyanate decomposition. The final product of decomposition is the most stable metallic oxide, as XRD data indicates. The new complexes were also screened for their microbicidal and antibiofilm properties. |
| Databáze: | OpenAIRE |
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