exodentate bonding modes in solution. FTIR studies of the complexes indicate the presence of isomers in the solid state. The palladium catalyst precursors trans-[PdCl2(μ-L)]2 and [Pd (acac)(L)][BF4] were found to be active in the addition polymerization of norbornene. In the presence of cocatalysts, such as diisobutylaluminum chloride and boron trifluoride etherate, Pd (II) complexes exhibited activities in
Pd (II) 配合反式-[PdCl 2 (μ-L)] 2和 [Pd(acac)(L)][BF 4 ] (L = RS(CH 2 ) 2 O(CH 2 ) 2 SR, R = Me、Et、n Pr、i Pr、n Bu、i Bu、正己基、苄基)通过 Pd(cod)Cl 2或 [Pd(acac)(MeCN) 2 ][BF 4 的反应获得] 与一当量的氧二
硫醚 (L)。这些配合物的结构特征通过核磁共振 (NMR) 和傅立叶变换红外光谱 (FTIR) 以及电喷雾电离质谱和密度泛函理论计算进行分析。复合物 di-μ-(2,10-二甲基-6-oxa-3,9-dithiaunddecane-κ 2 S , S' )-双[反式二
氯钯(II)] 和 (
乙酰丙酮-κ 2 O , O' )(2,10-二甲基-6-oxa-3,9-dithiaunddecane-κ 2 S , S')四
氟硼酸钯 (II) 用 X 射线衍射法表征。每个复合物的