高等学校化学学报

高等学校化学学报 ›› 1991, Vol. 12 ›› Issue (4): 444.

• 论文 • 上一篇    下一篇

5,12-二苯基-7,14-二甲基-1,4,8,11-四氮杂环十四烷-N,N″-二乙酸及其镧系配合物的合成和表征

陈礼勤, 徐济德, 倪诗圣   

  1. 安徽大学化学系, 230039
  • 收稿日期:1989-10-28 出版日期:1991-04-24 发布日期:1991-04-24
  • 通讯作者: 陈礼勤
  • 基金资助:

    国家自然科学基金

Synthesis and Characterization of 5,12-Diphenyl-7,14-Dimethyl-1,4,8,11-Tetraazamacrocyclotetradecane-N,N"-Diacetic Acid and Its Lanthanide Complexes

Chen Li-qin, Xu Ji-de, Ni Shi-sheng   

  1. Department of Chemistry, Anhui University, Hefei, 230039
  • Received:1989-10-28 Online:1991-04-24 Published:1991-04-24

PDF (PC)

摘要： 多氮杂大环的配位化学一直是人们感兴趣的领域。近年来,人们努力把支链配位基团引入大环中,以便得到同时具有相对刚性和动力学稳定性的大环结构单元和具有相对柔性和动力学活性的开链结构单元的新型配体。我们曾通过简单的立体化学选择合成得到一系列部分N-乙酸取代六甲基四氮杂大环。本文报道新的大环配体c-meso-meso-5,12-二苯基-7,14-二甲基-1,4,8,11-四氮杂环十四烷-N,N″-二乙酸(H2L3及其镧系配合物的合成和表征。

关键词: 四氮杂环十四烷, N-乙酸, 稀土元素, 配合物

Abstract: Asimple stereospecific synthesis of c-meso-meso-5, 12-diphenyl-7,14-dimethyl- 1,4,8,11-tetraazamacrocycloteradecane-N,N"-4iacetic acid(H2L3) is reported. The 14 lanthanide (La through Lu, Pm excluded) complexes with this ligand have been prepared in methanol solutions by the interaction of H2L3with the rare earth chlorides. All these complexes in microcrystalline powder have constant stoichiometry, Ln(H2L3)CIs·nH2O, irrespective of the metal to ligand ratio used in the preparation. These compounds are characterized by elemental analysis, thermoanalysis, conductivity measurements and IRspectra.

Key words: Tetraazamacrocyclotetradecane, N-acetic acid, Rare earth elements, Complex

TrendMD: