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Thermal behaviour of hydrated lanthanide complexes with heptanedioic acid

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Abstract

The multi-step dehydration and decomposition of trivalent lanthanum and lanthanide heptanediate polyhydrates were investigated by means of thermal analysis completed with infrared study. Further more, X-ray diffraction data for investigated heptanediate complexes of general stoichiometry Ln2(C7H10O4)3.nH2O (wheren=16 in the case of La, Ce, Pr, Nd and Sm pimelates,n=8 for Eu, Gd, Tb, Dy, Er and Tm pimelates,n=12 for Ho, Yb and Lu pimelates) were also reported.

Zusammenfassung

Mittels TG, DTG, DTA wurde in Verbindung mit IR-Methoden der mehrstufige Dehydratations- und der Zersetzungsvorgang der Polyhydrate der PimelinsÄuresalze von dreiwertigem Lanthan und dreiwertigen Lanthanoiden untersucht. Röntgendiffraktionsdaten der untersuchten Heptandiat-Komplexe mit der allgemeinen Formel Ln2(C7H10O4)3 nH2O (mitn=16 für Ln=La, Ce, Pr, Nd und Sm,n=8 für Ln=Eu, Gd, Tb, Dy, Er und Tm sowien=12 für Ln=Ho, Yb und Lu) werden ebenfalls gegeben.

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  1. Institute of Inorganic and General Chemistry, Maria Curie-Sklodowska University, 20-031, Lublin, Poland

    M. Dabkowska

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Dabkowska, M. Thermal behaviour of hydrated lanthanide complexes with heptanedioic acid. Journal of Thermal Analysis 36, 1319–1330 (1990). https://doi.org/10.1007/BF01914055

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  • DOI: https://doi.org/10.1007/BF01914055

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