考察钯的两种联吡啶配合物:Pd(bpy)Cl2 (1)和Pd(bpy)2 (ClO4)2 (2 )的光谱、热谱和电化学行为,得出配合物 1不仅在负电势方向扫描时出现准可逆的氧化还原峰,而且在正电势方向扫描时也出现准可逆的氧化还原峰,对应在 350～ 4 50nm间出现较强MLCT吸收带;而配合物 2在 0～ 1.5V范围不出现氧化还原峰,对应 350～ 4 50nm间不出现较强MLCT吸收带.配合物中Pd～Cl伸缩频率为 354～ 343cm-1 ,Pd -N的伸缩频率为 4 4 5～ 4 55cm-1 之间,中心离子的吸电子作用使配体的IR向高频方向移动 The spectroscopic, thermographic and electrochemical behavior of two bipyridyl complexes of Pd: Pd (bpy) Cl2 (1) and Pd (bpy) 2 (ClO4) 2 (2) Quasi-reversible redox peaks appear in the direction scan, and quasi-reversible redox peaks appear in the positive potential scan, corresponding to strong MLCT absorption bands between 350 and 450 nm. The redox peaks do not appear in the range, corresponding to the strong MLCT absorption band between 350 and 450 nm, the stretching frequency of Pd ~ Cl in the complex is 354 ~ 343cm-1, the stretching frequency of Pd-N is 445 ~ 455cm- 1, the central ion’s electron-withdrawing action causes the IR of the ligand to move in the high frequency direction