|
|||||
|
|
Synthesis and characterisation of Ni(II), Cu(II), and Zn(II) complexes with an acyclic Mannich base functionalised with thioglycolate moiety |
|
| Authors: | Anca Dumbravă Rodica Olar Mihaela Badea Maria Nicoleta Grecu Florentina Pătrascu Luminita Măruţescu Nicolae Stănică |
| Institution: | 1. Department of Chemistry and Chemical Engineering, Ovidius University, 124 Mamaia Blvd., 900527, Constanta, Romania 2. Department of Inorganic Chemistry, Faculty of Chemistry, University of Bucharest, 90-92 Panduri Str., Sector 5, 050663, Bucharest, Romania 3. National Institute of Materials Physics Bucharest-Magurele, Atomistilor Str. 105 bis, P.O. Box MG-7, 077125, Magurele-Ilfov, Romania 4. Department of Microbiology, Faculty of Biology, University of Bucharest, 1-3 Aleea Portocalelor Str., Bucharest, Romania 5. “Ilie Murgulescu” Physical Chemistry Institute, Romanian Academy, 202 Splaiul Independentei, 77208, Bucharest, Romania |
| Abstract: | 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. |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |