S-bridged trinuclear Pd(II) complexes, [Pd(terpy)}2Pd(aet)2}]X4·nSolv (terpy = 2,2′ : 6′,2′′-terpyridine, aet = 2-aminoethanethiolate; X = PF6-, n = 2, Solv = CH3CN (1); X = BF4-, n = 0.5, Solv = H2O (2); X = BF4-, n = 0 (3); 2X = SiF62-, n = 6, Solv = H2O (4)), were obtained by the reactions of [Pd(aet)2] (aet = 2-aminoethanethiolate) with [Pd(NO3)(terpy)]+ (terpy = 2,2′ : 6′,2′′-terpyridine) using some kinds of counter anions and solvents. The molecules of 1—4, whose structures were determined by X-ray crystallography, contain two Pd(terpy)} moieties bridged by one [Pd(aet)2] unit. Although the molecular structures of these complexes are similar to each other, they have significantly different intermolecular structures from each other. While 1 and 2 take monomeric structures, 3 and 4 exist as polymeric forms. These structural features also reflect their diffuse reflection spectra.
S-桥联的三核Pd(II)配合物[Pd(terpy)}2Pd(aet)2}]X4·nSolv(terpy = 2,2′: 6′,2′′-萜啶,aet = 2-
氨基
乙硫醇;X = PF6-, n = 2,Solv = CH3CN (1);X =
BF4-, n = 0.5,Solv =
H2O (2);X = -, n = 0 (3);2X = SiF62-, n = 6,Solv = (4))是通过[Pd(aet)2](aet = 2-
氨基
乙硫醇)与[Pd(
NO3)(terpy)]+(terpy = 2,2′: 6′,2′′-萜啶)的反应得到的,使用了不同种类的配对阴离子和溶剂。1—4分子的结构通过X射线晶体学确定,包含两个Pd(terpy)}单元通过一个[Pd(aet)2]单元相连。尽管这些配合物的分子结构相似,但它们之间的分子间结构却有显著不同。1和2呈现单体结构,而3和4则以聚合形式存在。这些结构特征也反映在它们的漫反射光谱中。