A complex of terbium(Ⅲ) with Schiff base salicylaldehyde-taurine and 1,10-phenanthroline was synthesized. The molecular formula was [Tb (sal-taurine) (1,10-phen) (NO_3)]·2H_2O (sal=salicylaldehyde, 1,10-phen=1,1...A complex of terbium(Ⅲ) with Schiff base salicylaldehyde-taurine and 1,10-phenanthroline was synthesized. The molecular formula was [Tb (sal-taurine) (1,10-phen) (NO_3)]·2H_2O (sal=salicylaldehyde, 1,10-phen=1,10-phenanthroline). The composition of the title complex was determined by elemental analysis and EDTA volumetic analysis. IR, Molar conductivity and X-ray powder diffraction were performed for its characterizations. The thermal decomposition kinetics of the complex were investigated under non-isothermal condition using the Achar differential method and the Coats-Redfern integral method. The kinetic equation for the second step corresponds to the mechanisms of the Zhuralev, Lesokin and Templman equation were obtained.展开更多
he present paper covers the synthesis,crystal structure and thermodecom-position kinetics of bis [(3-methoxysalicylal )-ethanolamine] copper (Ⅱ) complex.X-ray diffraction determination gave the following crystal data...he present paper covers the synthesis,crystal structure and thermodecom-position kinetics of bis [(3-methoxysalicylal )-ethanolamine] copper (Ⅱ) complex.X-ray diffraction determination gave the following crystal data: triclinic system.space group P1,Z=2.a = 0. 884 1 ( 4 ) .b =1.0773 (2), c = 1 . 1 32 1 (3) nm . α=70. 38(1),β= 70.70(2).γ=78.29 ( 2)°.The final agreement factors were R =0. 075, R_w= 0. 067, respectively.Investigation on non-isothermal kinetics of thecomplex favored second order kinetics. The kinetic equation is expressed as: da/dt= A × e ￣(-E/RT)×(1 -α)￣2 .展开更多
文摘A complex of terbium(Ⅲ) with Schiff base salicylaldehyde-taurine and 1,10-phenanthroline was synthesized. The molecular formula was [Tb (sal-taurine) (1,10-phen) (NO_3)]·2H_2O (sal=salicylaldehyde, 1,10-phen=1,10-phenanthroline). The composition of the title complex was determined by elemental analysis and EDTA volumetic analysis. IR, Molar conductivity and X-ray powder diffraction were performed for its characterizations. The thermal decomposition kinetics of the complex were investigated under non-isothermal condition using the Achar differential method and the Coats-Redfern integral method. The kinetic equation for the second step corresponds to the mechanisms of the Zhuralev, Lesokin and Templman equation were obtained.
文摘he present paper covers the synthesis,crystal structure and thermodecom-position kinetics of bis [(3-methoxysalicylal )-ethanolamine] copper (Ⅱ) complex.X-ray diffraction determination gave the following crystal data: triclinic system.space group P1,Z=2.a = 0. 884 1 ( 4 ) .b =1.0773 (2), c = 1 . 1 32 1 (3) nm . α=70. 38(1),β= 70.70(2).γ=78.29 ( 2)°.The final agreement factors were R =0. 075, R_w= 0. 067, respectively.Investigation on non-isothermal kinetics of thecomplex favored second order kinetics. The kinetic equation is expressed as: da/dt= A × e ￣(-E/RT)×(1 -α)￣2 .
