New Mononuclear Cu(II) Complexes and 1D Chains with 4-Amino-4H-1,2,4-triazole
| Autor: | Yiannis Sanakis, Yves Boland, Eamonn Devlin, Yann Garcia, Bernard Tinant, Damien Gillard, Koen Robeyns, Damir A. Safin, Marinela M. Dîrtu |
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| Přispěvatelé: | UCL - SST/IMCN/MOST - Molecules, Solids and Reactivity |
| Rok vydání: | 2013 |
| Předmět: |
Unclassified drug
Molecular Conformation Crystal engineering Crystal structure Crystallography X-Ray Chloride coordination polymers copper 1 2 4-triazole magnetic properties crystal engineering lcsh:Chemistry chemistry.chemical_compound Coordination Complexes Electron spin resonance Diffuse reflectance spectroscopy Infrared spectroscopy lcsh:QH301-705.5 Spectroscopy chemistry.chemical_classification Proton nuclear magnetic resonance Copper complex Magnetism Temperature General Medicine Polymer Computer Science Applications medicine.drug N N bis (1 2 4 triazole 4 yl)formamidine hydrochloride X ray diffraction chemistry.chemical_element Nanotechnology Article Catalysis Ion Inorganic Chemistry Magnetics Magnetic properties medicine Physical and Theoretical Chemistry Molecular Biology Organic Chemistry Cationic polymerization 1 2 4-Triazole X ray crystallography Triazoles Copper Coordination polymers Crystallography lcsh:Biology (General) lcsh:QD1-999 chemistry 1 2 4 triazole derivative 4 amino 4H 1 2 4 triazole |
| Zdroj: | International Journal of Molecular Sciences, Vol 14, Iss 12, Pp 23597-23613 (2013) International Journal of Molecular Sciences International Journal of Molecular Sciences; Volume 14; Issue 12; Pages: 23597-23613 International Journal of Molecular Sciences, Vol. 14, no. 12, p. 23597-23613 (2013) |
| ISSN: | 1422-0067 |
| DOI: | 10.3390/ijms141223597 |
| Popis: | The crystal structures of two mononuclear Cu(II) NH2trz complexes [Cu(NH2trz)4(H2O)](AsF6)2 (I) and [Cu(NH2trz)4(H2O)](PF6)2 (II) as well as two coordination polymers [Cu(μ2-NH2trz)2Cl]Cl·H2O (III) and [Cu(μ2-NH2trz)2Cl] (SiF6)0.5·1.5H2O (IV) are presented. Cationic 1D chains with bridging bis-monodentate μ2-coordinated NH2trz and bridging μ2-coordinated chloride ligands are present in III and IV. In these coordination polymers, the Cu(II) ions are strongly antiferromagnetically coupled with J = -128.4 cm-1 for III and J = -143 cm-1 for IV (H = -JΣSiSi+1), due to the nature of the bridges between spin centers. Inter-chain interactions present in the crystal structures were taken into consideration, as well as g factors, which were determined experimentally, for the quantitative modeling of their magnetic properties. © 2013 by the authors; licensee MDPI, Basel, Switzerland. |
| Databáze: | OpenAIRE |
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