reaction of LiAr (Ar = C6H4F-4) with the respective trifluoroacetate palladium pincer complexes 9–12. The molecular structures of 14 and 16 were determined by an X-ray crystallographic method. Complexes 13–16 and Pd(Ar)[2,5-(tBu2PCH2)2C5H2}Fe(C5H5)]}PF6 (17) were studied by multinuclear NMR spectroscopy and cyclic voltammetry. On the basis of 19F NMR chemical shifts and 1J(13C–19F) coupling constants,
具有不同钳位
配体的
钯氟苯基配合物Pd(Ar)[2,6-(t Bu 2 PCH 2)2 C 6 H 3 ](13),Pd(Ar)[2,6-(t Bu 2 PO)2 C 6 H 3 ](14),Pd(Ar)[2,5-(t Bu 2 PCH 2)2 C 5 H 2 } Fe(C 5 H 5)](15)和Pd(Ar)[ 2,5-(t Bu 2 PCH 2)2 C 5 H 2 } Ru(C 5 H 5)](16)是通过LiAr(Ar = C 6 H 4 F-4)与相应的
三氟乙酸钯钯夹杂物9-12反应合成的。通过X射线晶体学方法确定14和16的分子结构。配合物13–16和Pd(Ar)[2,5-(t Bu 2 PCH 2)2 C 5 H 2 } Fe(C 5 H 5)]} PF 6(17)用多核NMR光谱和循环伏安法研究。基于19 F NMR
化学位移和1 J(13 C– 19 F)耦合常数,以及Pd