cis-Dinitrodiammineplatinum(II)

cis-Dinitrodiammineplatinum(II) 화학적 특성, 용도, 생산

• Synthesis

  The cis form of this neutral salt complex is precipitated when an aqueous solution of potassium platinum (II) nitrite is treated with aqueous ammonia.
  The starting K2Pt(NO2)4 can be prepared from K2PtCl6 , which is allowed to react with an excess of alkali nitrite, evolving nitric oxide.
  K2PtCl6 + 6NaNO2 = K2Pt(NO2)4 + 2 NO2 + 6 NaCl
  The K2Pt(NO2)4 solution can also be prepared, in a smooth reaction, from K2PtCl4:
  K2PtCl4 + 4NaNO2 = K2Pt(NO2)4 + 4NaCl
  To produce the desired complex [Pt(NO2)2(NH3)2], the cold, filtered solution of K2Pt(NO2)4 is reacted with a stoichiometric quantity of 20% aqueous ammonia:
  K2Pt(NO,)4 + 2NH3 = [Pt(NO2),(NH3)2] + 2KNO2