Synthesis and Properties of Complexes of Gd(III), Tb(III), Ho(III) and Tm(III) with 4,4'-Bipyridine and Dichloroacetates

• Autorzy: Czakis-Sulikowska D. , Czylkowska A. , Markiewicz M. , Frajtak M.
• Języki publikacji: EN

Abstrakty

EN

New mixed-ligand complexes of general formulae Ln(4-bpy)(CCl2HCOO)3źnH2O (4-bpy = 4,4'-bipyridine, Ln = lanthanide(III), n = 1 for Gd, n = 2 for Tb, Ho) and Tm(4-bpy)1.5(CCl2HCOO)3ź3H2O have been prepared and characterized by elemental and thermal analysis, IR spectroscopy and conductivity studies. The thermal properties of complexes were investigated in air atmosphere. During the heating the complexes decompose via intermediates to the oxides: Ln2O3 and Tb4O7. The principal volatile products of pyrolytic decomposition of Ho(III) and Tm(III) complexes, detected by a coupled TG-MS system are: C+, H2O+, CO2 + and species containing halogens and nitrogen. IR spectra suggest that 4-bpy and dichloroacetate groups are coordinated with Ln(III) ions.

Słowa kluczowe

EN

mixed ligand complexes; 4,4'-bipyridine; dichloroacetate; lanthanides; IR spectra; thermal decomposition; TG-MS data

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 2009
• Tom: Vol. 83, nr 11
• Strony: 1893--1901
• Opis fizyczny: Bibliogr. 29 poz., rys.

Twórcy

autor

Czakis-Sulikowska D.

autor

Czylkowska A.

autor

Markiewicz M.

autor

Frajtak M.

• Institute of General and Ecological Chemistry, Technical University of Łódź, Żeromskiego 116, 90-924 Łódź, Poland,

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