Preparation, characterization and thermal behaviour of polymeric complex of cadmium hexamethylenetetramine nitrate

Add time:08/02/2019    Source:sciencedirect.com

The preparation of cadmium nitrate complex with bridged hexamethylenetetramine-[{Cd(HMTA)(NO3)2(H2O)2}n], CHNC, of polymeric nature has been reported here for the first time. It was characterized by X-ray crystallography, 1H NMR, FT-IR and elemental analysis. The crystal structure is stabilized by hydrogen bonding between the oxygen atom of the nitrate group with the methyl hydrogen of HMTA and hydrogen of the coordinated water molecule via C–H⋯O and O–H⋯O interactions. The thermolysis of this complex was investigated by TG-DSC and ignition delay measurements. The model-free isoconversional and model-fitting kinetic approaches have been applied to isothermal TG data for kinetics investigation of thermal decomposition of the complex. At higher temperatures, the complex gets ignited to produce highly thermally stable residue most closely resembles CdO proved by XRD.

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