Studies on thermogravimetric analysis and solvophobic interactions of micellization of Pd (II) complex in non aqueous solvents

• Preparation and synthesis of palladium dodecylammonium acetate complex.
• Thermodynamic decomposition parameters and activation energy were obtained.
• Inverted metallomicelles with cmc in range of 0.7–0.8 mM were obtained in alcohols.
• Redox behavior changes from reversible to irreversible with change of alcohol.
• Size of Pd metallomicelles increases with increase in the hydrophobicity of alcohol.

The present paper deals with the synthesis and characterization of a Pd (II) metal complex by means of various spectroscopic, thermogravimetric and physicochemical techniques. The Pd metal complex was found to be thermally stable with melting point at 193 °C. Thermodynamic decomposition parameters and activation energy were obtained using various methods. The micellization behavior of the complex was examined in different alcohols (n = 2–5) and at various temperatures. Self assembly of synthesized metallosurfactant resulted in formation of inverted metallomicelles with cmc in range of 0.7–0.8 mM. Thermodynamically micellization process was found to be enthalpy driven. Dynamic redox electrochemical behavior changes from reversible to irreversible process with change of alcohol as solvent for different micellar solution. The size of Pd ‘inverse’ metallomicelles was found to increase with increase in the hydrophobicity of the solvent. Moreover, the study also takes into account the role of metal ion in modifying the properties of a metallosurfactant.

The report presents the synthesis, characterization and thermal analysis of Pd (II) complex that self assemble to form inverted metallomicelles with cmc in range of 0.7–0.8 mM.Figure optionsDownload as PowerPoint slide