| Abstract: nder the different reaction conditions, the different colour crystals have been obtained by the reactions between tetramethylpyratine and PdCl2. It was determined that two crystals really belong to different crystals by X-ray diffraction method. PdL2Cl2(L=Tetramethylpyrazine)belongs to monoclinic with space group Cc and cell parameters: a = 13.536(4)Å, b = 15.372(5)Å, c= 9.425(3)Å, β= 105.79(2)°,V= 1887.4(10)Å3, Z=4. (LH2)PdCl4·4H2O belongs to monoclinic with space group C2 and cell parameters: a=8.715(3)Å,b= 17.392(4)Å,c= 6.713(2)Å, β= 112.03(2)°,V= 943.2(4)Å3, Z=2. |
