中华医学超声杂志

应用化学 ›› 1992, Vol. 0 ›› Issue (5): 65-69.

• 研究论文 • 上一篇    下一篇

水合二高碲酸合铜(Ⅲ)酸氢四钠配合物的合成、结构和紫外吸收光谱

吴明娒, 苏锵, 胡宁海, 任玉芳   

  1. 中国科学院长春应用化学研究所, 长春 130022
  • 收稿日期:1991-08-27 修回日期:1991-10-29 出版日期:1992-10-10 发布日期:1992-10-10
  • 基金资助:
    国家自然科学基金

SYNTHESIS, CRYSTAL STRUCTURE AND UV ABSORPTION SPECTRUM OF BIS(DIHYDROGEN TELLURATO) CUPRATE(Ⅲ)

Wu Mingmei, Su Qiang, Hu Ninghai, Ren Yufang   

  1. Changchun Institute of Applied Chemistry, Academia Sinica, Changchun 130022
  • Received:1991-08-27 Revised:1991-10-29 Published:1992-10-10 Online:1992-10-10

PDF

394

被引次数

30

摘要： 在碱性水溶液中获得了组分为Na4H[Cu(H2TeO6)2]·17H2O的晶体配合物。用X-射线衍射法测定了单晶结构,晶体属三斜晶系,空间群 P1-,a=0.5939(2)nm,b=0.8957(3)nm,c=1.2555(3)nm,α=98.49(2)°,β=98.98(2)°,γ=93.94(2)°,V=0.6495(3)nm3,M=913.7,Dc=2.34s/cm3,Z=1.晶体中二个畸变的TeO4(OH)2八面体与中心Cu(Ⅲ)离子螯合,构成属准D2h点群对称的CuO4平面,Cu-O键长分别为0.1830nm和0.1844nm。配合物溶液的紫外吸收光谱,于270nm和405nm处有两个强的配体至金属电荷转移谱带。

关键词: Cu(Ⅲ)配合物, 晶体结构, 紫外吸收光谱

Abstract: The title complex Na4H[Cu(H2TcO6)2]·17H2O has been obtained from alkaline aqueous solution and its crystal struture was determined by four-cycle X-ray diffractometry. The complex is triclinic and has space group P1- with a=0.5930(2)nm, b=0.8957(3)nm, c=0.12555(3)nm, α=98.49(2)°, β=98.98(2), γ=93.94(2)°, V=0.6495(3)nm3, M=913.7, Dc=2.34g/cm3, Z=1. The copper(Ⅲ) ion is chelated by two groups of distorted octahedral TeO4(OH)2 to configurate CuO4 square planar of quasi-D2h symmetry. The distances of Cu-O is 0.1830 and 0.1844 nm respectively.The UV absorption spectrum of the complex solution shows two bands at 270 nm and 405 nm which are attributed to ligand-metal charge transfer transitions.

Key words: copper(Ⅲ) complex, crystal structure, UV absorption spectrum

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