Synthesis, characterization, thermogravimetry, and structural study of uranium complexes derived from dibasic S-alkylated thiosemicarbazone ligands

0434948 - FZÚ 2015 RIV GB eng J - Článek v odborném periodiku
Fasihizad, A. - Barak, T. - Ahmadi, M. - Dušek, Michal - Pojarová, Michaela
Synthesis, characterization, thermogravimetry, and structural study of uranium complexes derived from dibasic S-alkylated thiosemicarbazone ligands.
Journal of Coordination Chemistry. Roč. 67, č. 12 (2014), s. 2160-2170. ISSN 0095-8972. E-ISSN 1029-0389
Grant CEP: GA ČR(CZ) GA14-03276S
Institucionální podpora: RVO:68378271
Klíčová slova: uranium complex * isothiosemicarbazone * crystallography * spectra * thermal stability
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
Impakt faktor: 2.012, rok: 2014

Two pentagonal bipyramidal complexes, ethanol-(S-ethyl-N1,N4-bis(3-methoxy-2-hydroxybenzaldehyde)-isothiosemicarbazide-N,N’,O,O’)-dioxidouranium(VI) (1) and ethanol-(S-ethyl-N1-(2-hydroxyacetophenone)-N4-(5-bromo-2-hydroxybenzaldehyde)-isothiosemicarbazide-N,N’,O,O’)-dioxidouranium(VI) (2), have been prepared and characterized. Their structures have been determined by X-ray crystallography, and the structural parameters are discussed with those observed in related complexes. Electronic absorption, proton magnetic resonance, and FT-IR spectra have been recorded and analyzed. In both comple xes, the U(VI) centers are surrounded by N2O2 donor ligands, two oxido groups, and one ethanol in a distorted pentagonal bipyramid. The thermal stability of the new complexes has also been determined.
Trvalý link: http://hdl.handle.net/11104/0238890