Chem. J. Chinese Universities ›› 1991, Vol. 12 ›› Issue (1): 13.

• Articles • Previous Articles     Next Articles

The Synthesis and Structure of Pyrazine Bridged Heteronuclear compound[(NH3)5Co(C4H4N2)Ag(H2O)2(C4H4N2)Co(NH3)5](NO3)7·4H2O

Xu Bing1, Chen Dong1, Tang Wen-xia1, Yu Kai-bei2, Zhou Zhong-yuan2   

  1. 1. Coordination Chemistry Institute, Nanjing Univ. Nanjing, 210008;
    2. Analysis Center, Chengdu Branch of Chinese Academy of Science, Chengdu
  • Received:1989-05-31 Online:1991-01-24 Published:1991-01-24

Abstract: The compound of [(NH3)5Co(C4H4N2)Ag(H2O)2(C4H4N2)Co(NH3)5](NO3)7· 4H2Ois sinthesized, and 1098. Thecompound is crystalized in monoclinic,space group C2/c,with a=9. 431 (2)Å, 6=12. 374(2)Å, c=33. 716(6)Å,β=92. 42(1)Å,V=3922. 6Å, Z=4, μ(MoKa,λ=0. 7.1070A)-18. 4 cm-1, F(000)=2248, T=298K, R=0. 038, Rw=0. 038 for 2272 significant reflections. The silver shows square plane coordination, two water molecules in axial positions, each pyrazine bridge the silver and one cobalt. The cobalts are six coordinated by nitrogens, one from pyrazine and others from NH3groups, forming an octahedral coordination.

Key words: Pyrazine, Co,Ag, Complex, Crystal structure

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