Chinese Journal of Applied Chemistry ›› 1992, Vol. 0 ›› Issue (2): 33-37.

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SOLID STATE REACTIONS OF COORDINATION COMPOUNDS ⅩⅩⅩⅩⅢ. THE SOLID STATE SUBSTITUTION REACTION OF (Co(NH3)4CO3)Cl and (Co(en)2CO3)Cl WITH NH4SCN

Zhuang Jia, Cheng Quan, Xin Xinquan, Zheng Limin   

  1. Department of Chemistry, Nanjing University, Nanjing 210008
  • Received:1991-04-08 Revised:1991-06-26 Published:1992-04-10 Online:1992-04-10

Abstract: Solid state substitution reactions take place between (Co(NH3)4CO3)Cl or (Co(en)2CO3) Cl with NH4SCN at 100℃, with the non-volatized CO32- being substituted outside the inner coordination sphcrc by SCN-. Trans-(Co(NH3)4(NCS)2)Cl is formed in the reaction of (Co(NH3)4CO3)Cl with NH4SCN. However, in the reaction bctwccn(Co(en)2CO3)Cl and NHSCN, Cis-Co(en)2(NCS)2Cl is at first formed transforming into trans-isomer ultimately. Two reactions are believed to proceed through SN2 mechanism.

Key words: solid state reaction, substitution, (Co(NH3)4CO3)Cl, (Co(en)2CO3)Cl