物理化学学报 >> 2004, Vol. 20 >> Issue (09): 1144-1149.doi: 10.3866/PKU.WHXB20040917

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水杨醛-1H-苯并三唑乙酰腙与RE(III)配合物的热化学

武望婷;杨锐;胡亭;彭科;何水样;胡荣祖   

  1. 西北大学化学系,陕西省物理无机化学重点实验室,西安　710069
  • 收稿日期:2004-03-05 修回日期:2004-05-18 发布日期:2004-09-15
  • 通讯作者: 何水样 E-mail:xdhsy@263.net

Thermochemistry of Salicylaldehyde-1H-benzotriazol Acetyl Hydrazone Complexes with RE (III)

Wu Wang-Ting;Yang Rui;Hu Ting;Peng Ke;He Shui-Yang;Hu Rong-Zu   

  1. Department of Chemistry, Shaanxi Key Laboratory of Physico-Inorganic Chemistry, Northwest University, Xi′an　710069
  • Received:2004-03-05 Revised:2004-05-18 Published:2004-09-15
  • Contact: He Shui-Yang E-mail:xdhsy@263.net

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摘要： 在甲醇中,合成了6种稀土与水杨醛-1H-苯并三唑乙酰腙(C15H13N5O2,简称SBTH)的新配合物RE(HL)2ClO4(RE=Pr, Nd, Sm, Eu, Gd, Tb; HL=C15H12N5O2),并对其进行了元素分析、摩尔电导率、IR和1H NMR的测定,确定了其组成.通过TG-DTG、DSC研究了配合物的热分解过程,得到了各配合物的分解焓,利用Kissinger法及Ozawa法计算出各配合物主要分解阶段的表观活化能,测量了该系列配合物在二甲基甲酰胺(DMF)中不同浓度时的溶解焓.

关键词: 水杨醛-1H-苯并三唑乙酰腙, 稀土配合物, 分解焓, 活化能, 溶解焓

Abstract: Six new rare earth complexes of salicylaldehyde-1H-benzotriazol acetyl hydrazone(C15H13N5O2, SBTH)have been synthesized in methanol. The formulae RE(HL)2ClO4 (RE=Pr, Nd, Sm, Eu, Gd, Tb; HL=C15H12N5O2)were determined by elemental analysis and EDTA volumetric analysis, molar conductivity, IR and 1H NMR. The TG-DTG, DSC were carried out to study the thermodecomposition process and the decomposition enthalpies of the main steps of the complexes were obtained. The apparent activation energies of the main steps were calculated by the Kissinger′s method and Ozawa′s method. The dissolution enthalpies of the complexes were measured in DMF.

Key words: Salicylaldehyde-1H-benzotriazol acetyl hydrazone, Rare earth complexes, Decomposition enthalpy, Activation energies, Enthalpy of dissolution