CAJ | 학술논문

合成了高氯酸镨和咪唑(C3H4N2),DL-α-丙氨酸(C3H7NO2)混配配合物晶体.经傅立叶变换红外光谱、化学分析和元素分析确定其组成为[Pr(C3H7NO2)2(C3H4N2)(H2O)](ClO4)3.使用具有恒温环境的溶解-反应量热计,以2.0 mol·L-1HCl为量热溶剂,在T=(298.150±0.001)K时测定出化学反应PrCl3·6H2O(s)+2C3H7NO2(s)+C3H4N2(s)+3NaClO4(s)=[Pr(C3H7NO2)2(C3H4N2)(H2O)](ClO4)3(s)+3NaCl(s)+5H2O(1)的标准摩尔反应焓为△rH()m=(39.26±0.11)kJ·mol-1.根据盖斯定律,计算出配合物的标准摩尔生成焓为△fH()m{[Pr(C3H7NO2)2(C3H4N2)(H2O)](ClO4)3(s),298.150 K}=(-2424.2±3.3)kJ·mol-1.采用TG-DTG技术研究了配合物在流动高纯氮气(99.99%)气氛中的非等温热分解动力学,运用微分法(Achar-Brindley-sharp和Kissinger法)和积分法(Satava-Sestak和Coats-Redfem法)对非等温动力学数据进行分析,求得分解反应的表观活化能E=108.9 kJ·mol-1,动力学方程式为da/dt=2(5.90×108/3)(1-α)[-ln(1-α)]-1exp(-108.9×103/RT).
합성료고록산보화미서(C3H4N2),DL-α-병안산(C3H7NO2)혼배배합물정체.경부립협변환홍외광보、화학분석화원소분석학정기조성위[Pr(C3H7NO2)2(C3H4N2)(H2O)](ClO4)3.사용구유항온배경적용해-반응량열계,이2.0 mol·L-1HCl위량열용제,재T=(298.150±0.001)K시측정출화학반응PrCl3·6H2O(s)+2C3H7NO2(s)+C3H4N2(s)+3NaClO4(s)=[Pr(C3H7NO2)2(C3H4N2)(H2O)](ClO4)3(s)+3NaCl(s)+5H2O(1)적표준마이반응함위△rH()m=(39.26±0.11)kJ·mol-1.근거개사정률,계산출배합물적표준마이생성함위△fH()m{[Pr(C3H7NO2)2(C3H4N2)(H2O)](ClO4)3(s),298.150 K}=(-2424.2±3.3)kJ·mol-1.채용TG-DTG기술연구료배합물재류동고순담기(99.99%)기분중적비등온열분해동역학,운용미분법(Achar-Brindley-sharp화Kissinger법)화적분법(Satava-Sestak화Coats-Redfem법)대비등온동역학수거진행분석,구득분해반응적표관활화능E=108.9 kJ·mol-1,동역학방정식위da/dt=2(5.90×108/3)(1-α)[-ln(1-α)]-1exp(-108.9×103/RT).