Crystal structure and thermoanalytical study of a cadmium(II) complex with 1-allylimidazole

The crystal structure of a cadmium(II) 1-allylimidazole complex ([Cd(1-Alm)(3)(NO(3))(2)], where 1-Aim = 1-allylimidazole), was characterized by single-crystal X-ray diffraction analysis. Thermogravimetry (TG) coupled with an FTIR unit was used to study the thermal behaviour of the complex. A multi-step decomposition occurred in the complex due to the release of the ligand molecules, followed by oxidation. The final residue at 1073 K was found to be cadmium(II) oxide. The oxidative decomposition pattern of the examined complex initially proposed by the percentage mass loss data was proved by the evolved gas analysis. Finally, a kinetic analysis of the oxidative decomposition steps was made using the Kissinger equation, while the complex nature of the decomposition kinetics was revealed by the isoconversional Ozawa-Flynn-Wall method. (C) 2009 Elsevier B.V. All rights reserved.