A uranium (VI) complex: Synthesis, structural and thermal kinetic analysis

• Synthesis of new U(VI) complex with 2,6-DNP and Phen.
• Study of X-ray crystal structure and 3D packing.
• Thermal studies showed the one-step decomposition.
• Complex exhibited explosion at high temperature.

A new complex [UO2(2,6–DNP)2phen] (1) (2,6–DNP = 2,6–dinitrophenol, phen = 1,10–phenanthroline) was synthesized, and identified by elemental analysis, IR, Powder XRD and single crystal X-ray crystallography. Crystal structure provides the abundant information's about the bonding and geometry around the U(VI) metal center. The thermal decomposition was studied by TG–DSC, and the kinetics of thermolysis was investigated by applying model fitting as well as isoconversional methods. Explosion delay measurement (De) was also evaluated to determine the response of this complex under the condition of rapid heating.

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