化学学报 ›› 2002, Vol. 60 ›› Issue (9): 1716-1721. 上一篇    下一篇

研究论文

[ReO(MPMEP)(BMPBA)][ReO(MPMEP)(BMPBA)]的合成和结构

刘飞;贺佑丰;罗志福   

  1. 中国原子能科学研究院同位素所.北京(102413)
  • 出版日期:2002-09-15 发布日期:2002-09-15

Synthesis and Crystal Structure of [ReO(MPMEP)(BMPBA)][ReO(MPMEP) (BMPBA)]

Liu Fei;He Youfeng;Luo Zhifu   

  1. Department of Isotope, China Institute of Atomic Energy.Beijing (102413)
  • Online:2002-09-15 Published:2002-09-15

合成了未见文献报道的[ReO(MPMEP)(BMPBA)][ReO(MPMEP)(BMPBA)]配合物,其 中MPMEP = 1-(2-甲氧基苯基)-4-(2-巯基乙基)哌嗪,BMPBA = N,N-二(2-巯 基乙基)苄胺,并在适当的溶剂中培养出单晶,用X射线单晶衍射法测定了单晶结 构,晶体属三斜晶系,空间群P1,晶胞参数a = 0.93604(19) nm,b = 1.1044(2) nm,c = 1.3823(3) nm;α = 89.19(3)°,β = 74.50(3)°,γ = 75.04(3)° ;Z = 1,V = 1.3281(5) nm~3,μ = 4.836 mm~(-1),F(000) = 677,R = 0. 0403,wR = 0.0673。配合物的两个[ReO(MPMEP)(BMPBA)]部分均采取扭曲的三角双 锥几何结构,基底面由三齿配体的两个硫原子与氧原子构成,三齿配体的一个氮原 子和单齿配体的一个硫原子分别占取两个顶角位置,硫原子的离子化致使配合物呈 电中性。

关键词: 铼, 晶体结构, 哌嗪 P, 巯基化合物, 苄胺 P

A new rhenium SNS/S mixed ligand complex [ReO(MPMEP)(BMPBA)][ReO (MPMEP)(BMPBA)] [MPMEP = 1-(2-methoxyphenyl)-(4-mercaptoethyl)- piperazine, BMPBA = N,N-bis(2-mercaptoethyl)-benzylamine] has been prepared. The single crystal structure of the complex was determined by X-ray diffraction method. It belongs to triclinic crystal system, space group P1 with a = 0.93604(19) nm, b = 1.1044(2) nm, c = 1.3823(3) nm; α = 89.19(3)°, β = 74.50(3)°, γ = 75.04(3)°; Z = 1, V = 1. 3281(5) nm~3, μ = 4.836 mm~(-1), F(000) = 677, R = 0.0403, wR = 0.0673. Both [ReO(MPMEP)(BMPBA)] of the complex adopt distorted trigonal bipyramidal geometry, with the basal plane defined by the SS atoms of the tridentate ligand and the oxo-group. The N of the tridentate ligand and the S of the monodentate ligand occupy two apical positions. Ionization of the sulphur atoms leads to a neutral compound.

Key words: RHENIUM, CRYSTAL STRUCTURE, PIPERAZINE P, MERCAPTO COMPOUNDS, BENZENEMETHANAMIUM

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