高等学校化学学报

高等学校化学学报 ›› 1992, Vol. 13 ›› Issue (10): 1193.

• 论文 •    下一篇

十二钨磷酸碱土金属盐与DMF和乙醇加合物的合成及反应热的测定

王爱民, 朱京, 顾翼东   

  1. 复旦大学化学系, 上海, 200433
  • 收稿日期:1991-11-23 修回日期:1992-03-15 出版日期:1992-10-24 发布日期:1992-10-24
  • 通讯作者: 朱京
  • 基金资助:

    国家自然科学基金

Synthesis of Adducts Between Alkaline Earth Dodecatungstophosphates with DMF and EtOH and Determination of the Heats of Addition Reaction

WANG Ai-Min, ZHU Jing, GU Yi-Dong   

  1. Department of Chemistry, Fudan University, Shanghai, 200433
  • Received:1991-11-23 Revised:1992-03-15 Online:1992-10-24 Published:1992-10-24

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摘要： 在非水溶剂中合成了十二钨磷酸碱土金属盐与DMF和EtOH的加合物Ca3/2(PW12O40)·9DMF·EtOH、Sr3/2(PW12O40)·8DMF·EtOH和Ba3/2(PW12O40)·9DMF.通过元素分析和红外光谱确定了它们的组成和Keggin结构.测定了十二钨磷酸钙、十二钨磷酸锶和十二钨磷酸钡同DMF和EtOH的加合反应热.30℃下其反应热分别为—207.4±2.3、—197.1土5.4kJ/mol和—270.9±2.4kJ/mol.

关键词: 十二钨磷酸盐加合物, 合成, 反应热

Abstract: Adducts,Ca2/3(PW12O40)·9DMF·EtOH,Sr2/3(PW12O40)·8DMF·EtOH and Ba2/3(PW12O40)·9DMF were synthesized in non-aqueous solutions,Their compositions and Keggin structures were characterized by elemental analysis and IRspectrometry.The heats of addition reactions between calcium dodecatungstophosphate,strontium dodecatungstophosphate and barium dodecatungstophosphate with DMF and EtOH were respectively determined by solution calorimetry.The values were -207.4±2.3 kJ/mol,-197.1±5.4 kJ/mol and -270,9±2.4 kJ/mol at 30℃,respectively.

Key words: Adducts of dodecatungstophosphates, Synthesis, Heats of reactions

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