【摘要】 本文报道标题Zn（Ⅱ）配合物:[Zn（NBOCTB）]（NO₃）₂·3H₂O的制备,晶体结构及热分解动力学.该晶体属三斜晶系,空间群p（?）,a=1.4146（2）,b=1.5407（3）,c=1.8518（4）nm;α=62.09（2）,β=72.46（2）,γ=68.60（1）°.并对配合物第一和第二步热分解反应进行了非等温动力学研究.运用Achar法与Coats—Redfern法对非等温动力学数据进行分析,推断第一步脱水过程为成核和生长机理,其动力学方程为:dα/dt=Ae^-E/RT,3/2（1-α）·[-In（1-α）]^1/3;动力学补偿效应表达式为:InA=0.3739E-3.321.第二步分解过程为二级化学反应,其动力学方程为:dα/dt=Ae^-E/RT（1-α）²;动力学补偿效应表达式为:InA=0.2100E-3.690.更多还原

【Abstract】 Synthesis and crystal structure of titled Zn(Ⅱ) coordination compound, [Zn(NBOCTB)] (NO3)2·3H2O, were reported in this paper. The complex belongs to triclinic system, space group P1 with a=1.4146(2), b= 1.5407(3), c= 1.8518(4)nm; α= 62.09(2), β= 72.46(2), γ = 68.60(l)°; V =3.2783(9)nm3, Mr=1238.68, Z=2, Dx=1.25g/ cm3, υ= 4.43cm-1, F(000)=1288. Non-isothermal kinetics of thermal decomposition of the complex was also studied with Achar method and Coats-Redfern method by TG and DTG techniques. The kinetic equation for the first step can be expressed as: dα/dt=Ae·(3/2)·3(1 -α)·3[ - ln(1 -α)]1/3 , the mechanism is"Coring and Growth" (n=1.5); while for the second step, dα/dt = Ae-E/RT·(1-α)2 , whichcorresponding to the mechanism of "the second-order chemical reaction". The mathematic expressions of the kinetic compensation effect for the two steps are found to be:lnA = 0.3739E-3.321, and lnA = 0.2100E-3.690, respectively.更多还原