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Thermal Decomposition of Some Copper–iron Polynuclear Coordination Compounds Containing Glycine as Ligand, Precursors of Copper Ferrite by Oana Carp; Dana Gingasu; Ioana Mindru; Luminita Patron is a Materials Science article available to read on EtoBox.

What is Thermal Decomposition of Some Copper–iron Polynuclear Coordination Compounds Containing Glycine as Ligand, Precursors of Copper Ferrite about?

The thermal behaviour of three coordination compounds, precursors of copper ferrite, namely [Fe 2 Cu(NH 2 CH 2 COOH) 4.5 ](NO 3 ) 8 •4H 2 O (I), [Fe 2 Cu(NH 2 CH 2 COO) 4 (OH) 3 ](NO 3 )•H 2 O (II) and [Fe 2 Cu(NH 2 CH 2 COO) 6 (NH 2 CH 2 COOH) 2 ](NO 3 ) 2 (III), has been investigated. For a complete and reliable assignment of the thermal transformations, the isolable intermediates and end products were characterized by IR and X-ray diffraction. The coordination compounds which undergo a stepwise decomposition in the temperature range 60-375 • C are less stable than free glycine (206-375 • C), indicating the occurrence of some self-propagating reactions. The nitrate/glycine ratio contained by the parent coordination compound, affects the final decomposition temperature (decreases as the ratio increases) but not the decomposition mechanism, and the mean particles size of the decomposition end product Fe 2 CuO 4 (an optimum value has to be found in order to avoid local combustion occurrences).

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Author

Oana Carp; Dana Gingasu; Ioana Mindru; Luminita Patron

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0040-6031)

Published

2006

Language

EN

Field

Materials Science (Physical Sciences)