Synthesis and Structural Characterization of a Fluorinated α-Diimine Platinum(II) Complex

The preparation of an electron-deficient (N−N)PtCl2 complex in which the diimine C is substituted by CF3 is described. Thus, reactions between the diimine ligand 1 (R = CF3, R‘ = 2,6-dimethylphenyl) and PtCl2 (thermal reaction) or KPtCl3(C2H4) (photochemically activated) furnishes the corresponding (N−N)PtCl2 complex 2. The ligand 1 and its Pt complexes 2, as well as related (N−N)PtCl2 complexes 3 (R = CO2CD3, R‘ = 2,6-dimethylphenyl; a methanolysis product) and 4 (R = H, R‘ = 2,6-dimethylphenyl) have been characterized by X-ray crystallography.本文报道了一种缺电子(N−N)二氯化铂配合物的制备方法，该配合物的二亚胺配体碳原子位点被三氟甲基（CF3）取代。具体而言，二亚胺配体1（R=CF3，R'=2,6-二甲基苯基）分别与二氯化铂（PtCl2，热反应条件）或三氯(乙烯)合铂酸钾（KPtCl3(C2H4)，光活化条件下）反应，合成得到对应的(N−N)二氯化铂配合物2。配体1及其铂配合物2，以及相关的(N−N)二氯化铂配合物3（R=CO2CD3，R'=2,6-二甲基苯基，为甲醇解产物）和4（R=H，R'=2,6-二甲基苯基），均通过X射线晶体学（X-ray crystallography）完成了结构表征。