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Florentina Pătraşcu Mihaela Badea Maria Nicoleta Grecu Nicolae Stanică Luminiţa Măruţescu Dana Marinescu Cezar Spînu Cristian Tigae Rodica Olar 《Journal of Thermal Analysis and Calorimetry》2013,113(3):1421-1429
New species of type MLCl2·nH2O (M:Ni, n = 6; M:Cu, n = 1.5 and M:Zn, n = 1; L: 1,8-bis(3′-ketopyridil)-1,3,6,8,10,13-hexaazacyclotetradecane, ligand resulted by 1,2-diaminoethane, nicotinamide and formaldehyde template condensation) were synthesised. The compounds were characterised by chemical analysis, ESI–MS, IR, NMR, UV–Vis-NIR and EPR spectroscopy as well as magnetic data at room temperature. The modifications in the IR and NMR spectra are in accordance with the condensation process. Electronic spectra indicate that Ni(II) adopts an octahedral stereochemistry while the surrounding of Cu(II) is square-pyramidal. The proposed stereochemistry was furthermore confirmed by magnetic moments and EPR spectrum at room temperature. The water is eliminated in one or two steps, respectively, while the oxidative degradation of the ligand and chloride decomposition occur in two steps. The final residues consist of the most stable metallic oxides as X-ray powder diffraction indicates. The newly synthesised compounds were evaluated for their antimicrobial effect against different bacterial and fungal strains. 相似文献
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Măruţoiu Constantin Tigae Cristian Moise Maria-Ioana Popescu Alexandru Ilea Iuliana 《平面色谱法杂志一现代薄层色谱法》2003,16(1):32-35
JPC – Journal of Planar Chromatography – Modern TLC - A stationary phase for thin-layer chromatography has been prepared by bonding purified diatomaceous earth (rich in silica) with... 相似文献
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Măruțoiu Constantin Oprean Letiția Măruțoiu Olivia-Florena Soran Maria-Loredana Tigae Cristian Goncea Monica Carmen 《平面色谱法杂志一现代薄层色谱法》2005,18(4):282-284
JPC – Journal of Planar Chromatography – Modern TLC - Horseradish samples (Cochlearis armoracia L.) and mustard samples (Sinapis alba L.) were extracted with 70:30 (v/v)... 相似文献
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Măruţoiu Constantin Filip Miuţa Tigae Cristian Coman Virginia Grecu Rodica Marcu Gheorghe 《平面色谱法杂志一现代薄层色谱法》2003,16(3):183-185
JPC – Journal of Planar Chromatography – Modern TLC - A stationary phase for thin-layer chromatography has been prepared by attaching 1-octene to alumina R. This stationary phase has... 相似文献
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Marutoiu Constantin Gogoasa Ioan Oprean Ioan Marutoiu Olivia-Florena Moise Maria-Ioana Tigae Cristian Rada Maria 《平面色谱法杂志一现代薄层色谱法》2006,19(3):250-252
JPC – Journal of Planar Chromatography – Modern TLC - 相似文献
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