Preparation, X-ray crystallography and thermolysis of lanthanide metal nitrate complexes with 2,2′-bipyridine, Part-88

The nitrate complexes of cerium, praseodymium and neodymium with 2,2’-bipyridine of general formulae, [Ln(bipy)2(NO3)3], have been prepared and characterized by X-ray crystallography. Thermal studies were undertaken using thermogravimetry (TG), TG (DTA) differential thermal analysis and ignition delay measurements. The kinetics of thermal decomposition of these complexes was investigated using isothermal TG data by applying model-fitting and iso-conversional methods. The cerium complex decomposes in single step whereas praseodymium and neodymium complexes decompose in three steps.

► Lanthanide metal (Ce, Pr, and Nd) nitrate complexes have been prepared.
► Crystal structure for these complexes was confirmed by X-ray crystallography.
► Thermal analysis of these complexes has been done by TG and TG-DTA.
► Kinetics of thermal decomposition has been evaluated by model fitting and iso-conversional methods.