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Synthesis, crystal structure, and thermal decomposition kinetics of complex [Nd(BA)3bipy]2

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Abstract

The complex of [Nd(BA)3bipy]2 (BA = benzoic acid; bipy = 2,2′-bipyridine) has been synthesized and characterized by elemental analysis, IR spectra, single crystal X-ray diffraction, and TG/DTG techniques. The crystal is monoclinic with space group P2(1)/n. The two–eight coordinated Nd3+ ions are linked together by four bridged BA ligands and each Nd3+ ion is further bonded to one chelated bidentate BA ligand and one 2,2′-bipyridine molecule. The thermal decomposition process of the title complex was discussed by TG/DTG and IR techniques. The non-isothermal kinetics was investigated by using double equal-double step method. The kinetic equation for the first stage can be expressed as dα/dt = A exp(−E/RT)(1 − α). The thermodynamic parameters (ΔH , ΔG , and ΔS ) and kinetic parameters (activation energy E and pre-exponential factor A) were also calculated.

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Acknowledgements

This project was supported by the National Natural Science Foundation of China (No. 20773034) and the Natural Science Foundation of Hebei Province (No. B2007000237).

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Correspondence to J. J. Zhang.

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Ye, H.M., Ren, N., Li, H. et al. Synthesis, crystal structure, and thermal decomposition kinetics of complex [Nd(BA)3bipy]2 . J Therm Anal Calorim 101, 205–211 (2010). https://doi.org/10.1007/s10973-009-0428-2

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  • DOI: https://doi.org/10.1007/s10973-009-0428-2

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