acylchalcogenoureas. Imidazolium salts however did not react with the ammine complex directly. They were accessible from the reaction of the parent dimer with the azolium salts in the presence of base. X-rax structures of several examples are reported and DFT calculations were used to elucidate the electronic structure of the ylide ligand and the bonding interactions with the palladium atom.
不溶性黄色二聚
钯化合物 [PdIκ 2 C -(CH 2 ) 2 SO(Me)}] 2与
氨溶液反应形成无色
氨络合物顺式-[Pd(NH 3 )Iκ 2 C - (CH 2 ) 2 SO(Me)}]。虽然这种材料很容易重新转化为母体二聚体,但可以获得用于结构测定的晶体。该化合物中的
氨配体可被 Ph 3取代P 或它可以充当“内置”碱基,用酸性质子使物质去质子化。后一种反应性已在酰基
硫族
脲中观察到。然而,
咪唑鎓盐不直接与
氨络合物反应。它们可通过母体二聚体与唑盐在碱存在下的反应获得。报告了几个例子的 X-rax 结构,并使用 DFT 计算来阐明叶立德
配体的电子结构以及与
钯原子的键合相互作用。