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Thermal Behaviour of New Zinc(II) Bromobutyrate Complex Compounds

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Abstract

New zinc bromobutyrate complexes of general formula ZnX2·1−L·nH2O (X=CH2Br(CH2)2COO−; CH3CH2CHBrCOO−) containing one or two molecules of caffeine, nicotin-amide and phenazone as ligands (L) were prepared.

The compounds were characterized by MS-, IR- spectroscopy, chemical and thermal analysis. The thermal decomposition of hydrated compounds starts by the release of water molecules. In anhydrous compounds the loss of organic ligands takes place followed by the decomposition of the bromobutyrate anion at higher temperatures. Zinc bromide was found among the final products of thermal decomposition. Water, carbon monoxide, propylaldehyde, vinylaldehyde and formaldehyde were detected in the gaseous products of the thermally decomposed samples on heating up to 700°C.

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Authors and Affiliations

  1. Department of Inorganic Chemistry, P. J. Šafárik University, Moyzesova 11, Košice SK, 041 54, Slovak Republic

    K. Györyová & E. Andogová

  2. Institute of Macromolecular Chemistry ASCR, Heyrovského nám. 2, Prague 6 CZ, 162 06, Czech Republic

    J. Kovářová

  3. Department of Inorganic Chemistry, Technical University, Radlinského 9, Bratislava SK, 812 37, Slovak Republic

    M. Melník

Authors
  1. K. Györyová
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  2. J. Kovářová
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  3. M. Melník
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  4. E. Andogová
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Györyová, K., Kovářová, J., Melník, M. et al. Thermal Behaviour of New Zinc(II) Bromobutyrate Complex Compounds. Journal of Thermal Analysis and Calorimetry 56, 503–511 (1999). https://doi.org/10.1023/A:1010196409718

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  • DOI: https://doi.org/10.1023/A:1010196409718

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