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Transition metal complexes with thiosemicarbazide-based ligands

31. Dioxouranium(VI) complexes with N(1),N(4)-bis(salicyIidene)- and N(1)-benzoylisopropylidene-N(4)-saIicylidene-S-alkyl-isothio-semicarbazides

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Abstract

Solvate complexes of UO 2+2 andN(1), N(4)-bis(salicylidene)-S-methylisothiosemicarbazone, (H2Me-L1), of general formula [UO2(Me-L1)S] (S= H2O, MeOH, EtOH, Py, DMF and DMSO) were synthesized. The methanolic UO 2+2 ” adducts of N(1)-benzoylisopropylidene-N(4)-salicylidene-S-alkylisothiosemicarbazone, (H2R-L2,R=Me, Prn) of general formula [UO2(R-L2)· MeOH], were also prepared. Thermal decomposition of the complexes was investigated in air and argon. The complexes decompose to α-U3O8 in air, while in argon the decomposition is not completed up to 1000 K. The temperature and the mechanism of decomposition of the complexes are a function of the solvent belonging to the inner coordination sphere.

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Authors and Affiliations

  1. Faculty of Sciences, Institute of Chemistry, University of Novi Sad, Trg D. Obradovića 3, 21000, Novi Sad, Yugoslavia

    V. M. Leovac, E. Z. Ivegeš, K. Mészáros Szécsényi, K. Tomor, G. Pokol & S. Gal

  2. Institute for General and Analytical Chemistry, Technical University of Budapest, 1521, Budapest, Hungary

    K. Tomor, G. Pokol & S. Gal

Authors
  1. V. M. Leovac
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  2. E. Z. Ivegeš
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  3. K. Mészáros Szécsényi
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  4. K. Tomor
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  5. G. Pokol
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  6. S. Gal
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Leovac, V.M., Ivegeš, E.Z., Szécsényi, K.M. et al. Transition metal complexes with thiosemicarbazide-based ligands. Journal of Thermal Analysis 50, 431–440 (1997). https://doi.org/10.1007/BF01980503

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  • DOI: https://doi.org/10.1007/BF01980503

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