H2L2 = 5-methyl-1H-benzoimidazole-2-thiol, and H2L3 = 1H-imidazole-2-thiol) act as neutral monodentate ligands in a number of technetium and rhenium complexes. Disubstituted M(V) (M = Tc, Re) complexes of the type [AsPh4][MOCl2(H2Ln)2(H2O)]Cl2} are formed when [MOCl4]− react with H2L1–3 in 1:2 stoichiometric ratio. Single crystal X-ray structure determinations were carried out on [AsPh4][TcOCl2(H2L1)2(H2O)]Cl2}
咪唑-2-
硫醇衍
生物H 2 L 1–3(H 2 L 1 = 1 H-
苯并咪唑-2-
硫醇,H 2 L 2 = 5-甲基-1 H-
苯并咪唑-2-
硫醇和H 2 L 3 = 1 H-
咪唑-2-
硫醇)在许多tech和complex络合物中充当中性单齿
配体。当[MOCl 4 ]时,形成[AsPh 4 ] [MOCl 2(H 2 L n)2(H 2 O)] Cl 2 }类型的双取代M(V)(M = Tc,Re)络合物。−与
化学计量比为1的H 2 L 1-3反应。在[AsPh 4 ] [TcOCl 2(H 2 L 1)2(H 2 O)] Cl 2 }上进行单晶X射线结构测定。配位球是伪八面体,其中两个
配体的
硫原子位于赤道平面内,
水分子与TcO多重键成反式。所有络合物与过量的相应
配体反应形成四取代的阳离子物种[MO(H 2 L n)4 ] Cl 3}。这些络合物也可以通过[MOCl 4 ] -与