Studies on Synthesis, Crystal Structure and Kinetics of Thermal Decomposition of o-Vanillin Ethylenediamine Nickel (Ⅱ)

Abstract

Abstract: The crystal of o-vanillin ethylenediamine Nickel (Ⅰ) (Ni-Vaniethy) C₁₈H₁₈N₂NiO₄·H₂Owas synthesized and its structure was determined by single crystal X-ray diffraction method.The complex belongs to the orthorhombic system, space group Pbna with cell parameters of a=1.1931(3) nm, b=1.5233(4) nm, c=1.9592(6) nm, V=3.561 (nm)₃, M=403.08, Z=8, D_c=1.50 g/cm³, μ-11.23 cm^-1, F(000)=1680, final R=0.071 for 1200 unique reflections [I≥3(σ)].The kinetics of thermal decomposition reaction of the complex was studied under a non-isothermal condition by TG.The kinetic parameters were obtained from the analysis of TG, DTGcurves by integral and differential methods.The functions of thermal decomposition reaction mechanism are:f(a)=2(1-a)_1/2,g(a)=1-(1-a)_1/2.

Key words: Schiff base complex, Crystal structure, Kinetics of thermal decomposition reaction

TrendMD:

LIU De-Xin, LI Shu-Lan, GUI Xue-Gui, LI Xiao-Yan . Studies on Synthesis, Crystal Structure and Kinetics of Thermal Decomposition of o-Vanillin Ethylenediamine Nickel (Ⅱ)[J]. Chem. J. Chinese Universities, 1993, 14(7): 897.

References

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