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Thermal stability of some new complexes bearing ligands with polymerizable groups

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Abstract

A series of new complexes with mixed ligands of the type M(4,4’-dipy)(C3H3O2)2(H2O)y ((1) M=Mn, y=2; (2) M=Ni, y=2; 4,4’-dipy: 4,4’-dipyridyl and C3H3O2 is acrylate anion) and respectively M2(4,4’-dipy)(C3H3O2)4(H2O)y ((3) M=Cu, y=0; (4) M=Zn, y=1). The modification evidenced in IR spectra was correlated with the presence of acrylate ion as unidentate in the case of complex (1) and as bidentate for others complexes. The electronic reflectance spectra showed the d–d transition for complex (1) and (2) characteristic for the octahedral surrounding while the spectrum for complex (3) have the characteristic pattern for square-pyramidal stereochemistry. The thermal behaviour steps were investigated. The thermal transformations are complex processes according to TG and DTG curves including dehydration, acrylate ion oxidative degradation and thermolysis process of aromatic amine. The final products of decomposition are the most stable metal oxides.

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Authors and Affiliations

  1. Faculty of Chemistry, Department of Inorganic Chemistry, University of Bucharest, Bucharest, Romania, 050663 Sector 5, 90-92 Panduri St.

    Mihaela Badea, Rodica Olar & Dana Marinescu

  2. Faculty of Chemistry, Department of Physical Chemistry, University of Bucharest, Bucharest, Romania, 4-12 Elisabeta blvd

    E. Segal & A. Rotaru

Authors
  1. Mihaela Badea
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  2. Rodica Olar
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  3. Dana Marinescu
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  4. E. Segal
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  5. A. Rotaru
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Correspondence to Mihaela Badea.

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Badea, M., Olar, R., Marinescu, D. et al. Thermal stability of some new complexes bearing ligands with polymerizable groups. J Therm Anal Calorim 88, 317–321 (2007). https://doi.org/10.1007/s10973-006-8031-2

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  • DOI: https://doi.org/10.1007/s10973-006-8031-2

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