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化学学报
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化学学报 ›› 1991, Vol. 49 ›› Issue (1): 48-52. 上一篇    下一篇

研究论文

大环穴醚双铜叠氮配合物 [Cu~2(N~3)~2(C~1~6H~3~8N~6)](ClO~4)~2的合成和结 构

童友之;金祥林;徐筱杰;唐有祺   

  1. 北京大学物理化学研究所.北京(100871)
  • 发布日期:1991-01-15

Synthesis and crystal structure of the azido dinuclear copper(II) cryptates of macrocyclic ligands [Cu~2(N~3)~2(C~1~6H~3~8N~6)](ClO~4) ~2

Tong Youzhi;Jin Xianglin;Xu Xiaojie;Tang Youqi   

  1. Beijing Univ, Inst Phys Chem.Beijing(100871)
  • Published:1991-01-15

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648

被引次数

1

本文报道二价铜与叠氮、大环穴醚(C~1~6H~3~8N~6)配合物的合成和晶体结构。配合物组成为[Cu~2(N~3)~2(C~1~6H~3~8N~6)](ClO~4)~2,晶体属于空间群C~i^1-P1,晶胞参数a=17.669(10),b=13.355(5),c=6.414(3)︿;α=103.85(4),β=100.40(4),γ=71.30(3)ⅲ;对1870个反射精修的最后一致性因子R=0.088。此配合物中Cu(II)呈平面正方四配位结构形式,这在类似饱和大环穴醚双铜配合物中,还是首次发现。每个配位多面体由大环穴醚配体提供三个氮原子,叠氮离子提供一个氮原子,两个Cu(II)离子之间不存在叠氮桥,间距为5.12︿。

关键词: 合成, 铜络合物, 叠氮化物, 穴醚, 大环, 晶体结构

This paper deals with the synthesis and crystal structure of the azido dicopper(II) macrocyclic complex, the macrocyclic cryptand C~1~6H~3~8N~6 is 1, 4, 7, 12, 15, 18-hexaazacyclodocosane. The compound [Cu~2(N~3)~2(C~1~6H~3~8N~6)](ClO~4)~2 crystallizes in the triclinic system, space group C~i^1-P1, with a=17.669(10), b=13.355(5) , c=6.414(3)︿; α=103.85(4), β=100.40(4), γ=71.30(3)ⅲ and Z=2. In the [Cu~2(N~3)~2(C~1~6H~3~8N~6)]^2^+ unit, the two copper cations are tetracoordinate CuN~4 centers, with square geometry, involving thre ring nitrogens and one terminally bound azide ions. There is no longer an azido bridge between the two copper atoms, which are 5.123 (4)︿ appart. The macrocycle is in a chair-type conformation.

Key words: SYNTHESIS, COPPER COMPLEX, AZIDE, CRYPTAND, CRYSTAL STRUCTURE

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