应用化学 ›› 1989, Vol. 0 ›› Issue (2): 40-42.

• 研究论文 • 上一篇    下一篇

维生素B1-锌配合物的晶体结构

刘朋军, 卫革成, 金钟声, 王文韵   

  1. 中国科学院长春应用化学研究所
  • 收稿日期:1988-03-12 修回日期:1988-08-29 出版日期:1989-04-10 发布日期:1989-04-10

CRYSTAL STRUCTURE OF Zn(Vitamin B1) COORDINATION COMPLEX

Liu Pengjun, Wei Gecheng, Jin Zhongsheng, Wang Wenyun   

  1. Changchun Institute of Applied Chemistry, Academia Sinica
  • Received:1988-03-12 Revised:1988-08-29 Published:1989-04-10 Online:1989-04-10

摘要: 用X射线单晶衍射方法测定了ZnVB1晶体结构。晶体属单斜晶系,空间群为C2/c;a=25.747(5),b=8.461(0),c=17.407(3)Å;β=105.79(1)°,Z=8。晶体结构是用Patterson函数法与Fourier计算得到,最后的R=0.0283。金属锌离子与嘧啶环上的N(1)原子以及三个氯离子键合,形成四配位的络合物。配位多面体是稍有扭曲的四面体。Zn-Cl键的平均距离为2.266Å,Zn-N键长为2.041(4)Å。

关键词: 维生素B1-锌配合物, 晶体结构

Abstract: The crystal structure of the title compound was determined by X-ray diffractometry.The complex crystallizes in monoclinic space group C2/c with Z= 8. Lattice parametersare: a =25.747(5), b= 8.461(0), c = 17.407(3)Å and β= 105.79(1)°. The structure wassolved by Patterson and Fourier techniques and refined by least-squares to a final R valueof 0.0283. The Zn(Ⅱ) ion is coordinated by three chloroligands and the atom N(1) of thepyrimidine ring of thiamine molecule, forming a slightly distorted tetrahedral coordinationpolyhedron. The average Zn-Cl distance is 2.266Å and the Zn-N bond length is2.042(4)Å.

Key words: Zn(Vitamin B1) complex, Crystal structure