首页> 外文期刊>Journal of the Chemical Society, Dalton Transactions. Inorganic Chemistry >The chemistry of ruthenium complexes of 1,2-dicyanoethylene dithiolate (mnt(2-)). Synthesis and characterization of [Ru-IV/III(mnt)(3)](2-/3-) and the derivatives trans-[Ru-III(mnt)(2)(PPh3)(2)](-), trans-[Ru-III(mnt)(2)(py)(2)](-) and trans-[Ru-IV(m
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The chemistry of ruthenium complexes of 1,2-dicyanoethylene dithiolate (mnt(2-)). Synthesis and characterization of [Ru-IV/III(mnt)(3)](2-/3-) and the derivatives trans-[Ru-III(mnt)(2)(PPh3)(2)](-), trans-[Ru-III(mnt)(2)(py)(2)](-) and trans-[Ru-IV(m

机译:1,2-二氰基亚乙基二硫醇盐(mnt(2-))钌配合物的化学性质。 [Ru-IV / III(mnt)(3)](2- / 3-)及其衍生物反式-[Ru-III(mnt)(2)(PPh3)(2)](-)的合成与表征,反-[Ru-III(mnt)(2)(py)(2)](-)和反-[Ru-IV(m

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The chemistry of ruthenium() and ruthenium() complexes with 1,2-dicyanoethylene dithiolate(2-) (mnt(2-)) as ligand has been investigated. The tris-complex [Ru-III(mnt)(3)](3-) is readily prepared and oxidized to [Ru-IV(mnt)(3)](2-). Both complex anions are characterized by X-ray structural analysis. Ligand substitution behavior of the anions has been examined. Reactions of [Ru-III(mnt)(3)](3-) with triphenylphosphine and pyridine are sluggish while reactions of [Ru-IV(mnt)(3)](2-) with these nucleophiles are complex, involving reduction by the displaced mnt(2-) ligand, to give trans-[Ru-III(mnt)(2)(PPh3)(2)](-) and trans-[Ru-III(mnt)(2)(py)(2)](-) respectively. A ruthenium(IV) complex, trans-[Ru-IV(mnt)(2)(Br)(2)](2-), is formed on treatment of [Ru-IV(mnt)(3)](2-) with Br-2. These three products have also been characterized by X-ray crystallography. In solution, the complexes trans-[Ru-III(mnt)(2)(PPh3)(2)](-) and trans-[Ru-IV(mnt)(2)(Br)(2)](2-) both lose one axial ligand in rapidly established equilibria. The complex, [Ru-IV(mnt)(3)](2-), undergoes an unusual photochemical rearrangement in the presence of oxygen resulting in formation of [Ru-II(mnts)(2)](2-) where mnts(2-) is a novel tridentate sulfur-bound ligand. [References: 49]
机译:以1,2-二氰亚乙基二硫代磺酸盐(2-)(mnt(2-))为配体的钌()和钌()配合物的化学性质进行了研究。容易制备三配合物[Ru-III(mnt)(3)](3-),并氧化为[Ru-IV(mnt)(3)](2-)。两种复合阴离子均通过X射线结构分析表征。已经检查了阴离子的配体取代行为。 [Ru-III(mnt)(3)](3-)与三苯基膦和吡啶的反应缓慢,而[Ru-IV(mnt)(3)](2-)与这些亲核试剂的反应很复杂,涉及还原取代的mnt(2-)配体,得到反式[Ru-III(mnt)(2)(PPh3)(2)](-)和反式[Ru-III(mnt)(2)(py)( 2)](-)。通过处理[Ru-IV(mnt)(3)](2-),形成钌(IV)络合物,反式-[Ru-IV(mnt)(2)(Br)(2)](2-) )与Br-2。这三种产品还通过X射线晶体学表征。在溶液中,复合物反式-[Ru-III(mnt)(2)(PPh3)(2)](-)和反式-[Ru-IV(mnt)(2)(Br)(2)](2- )都失去了快速建立的平衡中的一个轴向配体。络合物[Ru-IV(mnt)(3)](2-)在氧气存在下经历异常的光化学重排,导致形成[Ru-II(mnts)(2)](2-),其中(2-)是新颖的三齿硫结合配体。 [参考:49]

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