【摘要】 用TG-DTA,高温X-射线衍射研究了稀土间硝基苯甲酸配合物LnL₃·nH₂O（n=2,Ln=La→Lu+Y;n=0,Ln=Sc,HL=间硝基苯甲酸）的热分解行为,DSC测定其脱水相变过程中的热力学函数,同时用透射电镜观察了热分解产物的超微性。更多还原

【Abstract】 The rare earth complexes with m-nitrobenzoic acid （LnL₃·nH₂O, n=2,Ln=La-Lu and Y; n=0, Ln=Sc. HL=m-nitrobenzoic acid） were synthesized and characterized by elemental analysis and IR spectra. The mechanism of thermal decomposition of complexes were studied by means of TG-DTA and high temperature X-ray diffractometry. The activation energies and enthalpy changes of dehydration process of LnL₃·2H₂O were calculated. The phase change process of the complexes has been studied by DSC. The ultrafinity of the products of decomposition was observed.更多还原