高等学校化学学报

高等学校化学学报 ›› 1988, Vol. 9 ›› Issue (12): 1217.

• 论文 • 上一篇    下一篇

[Sc(NO3)3(H2O)2]·(B15C5)的合成、性质和结构

谭民裕1, 甘新民1, 唐宁1, 邹今平1, 祝英2, 王欣2   

  1. 1. 兰州大学化学系;
    2. 兰州大学分析测试中心
  • 收稿日期:1987-06-11 出版日期:1988-12-24 发布日期:1988-12-24
  • 通讯作者: 谭民裕
  • 基金资助:

    国家教育委员会资助课题

Synthesis, Characterization and Structure of Complex [Sc(NO3)3(H2O)2]·(Benzo-15-Crown-5)

Tan Minyu1, Gan Xinmin1, Tang Ning1, Zou Jinping1, Zhu Ying2, Wang Xin2   

  1. 1. Department of Chemistry, Lanzhou University, Lanzhou;
    2. Analysis and Testing Centre, Lanzhou University, Lanzhou
  • Received:1987-06-11 Online:1988-12-24 Published:1988-12-24

PDF (PC)

摘要： 在乙腈介质中培养出硝酸钪和苯并-15-冠-5形成的配合物单晶[Sc(NO3),(H2O)2)。(B15C5),对其进行了熔点、元素分析、红外光谱、摩尔电导等方面的鉴定。X射线结构分析表明,该晶体属单斜晶系,空间群为P21/n,晶胞参数为:α=9.405(6),b=15.569(8)Å,c=15.896(2),β=95.92(1)°,V=2315.5Å3,Z=4,Dc=1.53g/cm3,D0=1.54g/cm3。Sc(Ⅲ)离子同三个双齿硝酸根和两个水分子配位,构成八配位的配合物,并通过氢键与冠醚形成分子缔合物。

关键词: 硝酸钪配合物, 苯并-15-冠-5

Abstract: The single crystal of the complex [Sc(NO3), (H3O)2[·(B15C5) has been prepared and characterized by elemental analyses, 1Rspectra and molar conductance. The structure of the complex is determined by X-ray single crystal diffraction analyses. The crystal of the complex is monoclinic, space group P21/n with cell parameters: a = 9.405(6), b=15.569(8), c= 15.896(2) Å,β = 95.92(1)°, V = 2315.5Å3,Z = 4, Dc = 1.538/cm3, D0= 1.54g/cm3. The structure has been refined to R = 0.051 and Rw = 0.055 using< 3172≥3σ(Ⅰ) observed data. Here the crown is not coordinated to the metal ion but is linked to the [Sc(NO3)3(H2O)2] molecule by O...H-O bonds. The Sc-Obond lengths are 2.158(3)-2.254(3) Å for nitrato-and 2.123(3)-2.143(3) Å for water oxygens.

TrendMD: