Abstract

Hassan A.Habeeb Alshamsi*, Khalid J. Al-Adilee and Suadad A. Jaber

DOI : http://dx.doi.org/10.13005/ojc/310223

Synthesis and spectral identification of a new azo ligand7-[2-(Benzimidazolyl)azo]-8-Hydroxy quinoline (BIAHQ) is by using IR, UV-Vis, ¹H-NMR and mass spectra .The synthesis of metal complexes of this ligand was characterized  IR, UV-Vis radiation spectrum beside elemental analysis. The analytical data shows that the metal to ligand ratio [M:L] are 1:2. The thermal decomposition of Co(III),Ni(II) and Cu(II) complexes is studied in argon atmosphere. All complexes do not contain coordinated water molecules but Co(III) and Ni(II) contain one water molecule of crystallization. The water molecules are removed in a single step. The activation thermodynamic parameters, such as energy of activation, enthalpy, entropy and free energy change of  the complexes are evaluated and the stabilities of the thermal decomposition of the complexes are discussed.

Benzimidazolyl azo; chalet complexes; thermal analysis

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