Department of Chemistry, Durham University, South Road, Durham, DH1 3LE UK.
Chemistry. 2010 Sep 17;16(35):10818-31. doi: 10.1002/chem.201001354.
Treatment of a range of bis(thiourea) ligands with inert organometallic transition-metal ions gives a number of novel complexes that exhibit unusual ligand binding modes and significantly enhanced anion binding ability. The ruthenium(II) complex Ru(η(6)-p-cymene)(κS,S',N-L(3)-H) (2b) possesses juxtaposed four- and seven-membered chelate rings and binds anions as both 1:1 and 2:1 host guest complexes. The pyridyl bis(thiourea) complex Ru(η(6)-p-cymeme)(κS,S',N(py)-L(4)) (4) binds anions in both 1:1 and 1:2 species, whereas the free ligand is ineffective because of intramolecular NH⋅⋅⋅N hydrogen bonding. Novel palladium(II) complexes with nine- and ten-membered chelate rings are also reported.
用惰性有机过渡金属离子处理一系列双（硫脲）配体，得到了许多新型配合物，这些配合物表现出不寻常的配体结合模式和显著增强的阴离子结合能力。钌（II）配合物Ru(η(6)-p-cymene)(κS,S',N-L(3)-H)（2b）具有并置的四元和七元螯合环，并以 1:1 和 2:1 主客体配合物的形式结合阴离子。吡啶基双（硫脲）配合物Ru(η(6)-p-cymeme)(κS,S',N(py)-L(4))（4）以 1:1 和 1:2 物种结合阴离子，而游离配体由于分子内 NH⋅⋅⋅N 氢键而无效。还报道了具有九元和十元螯合环的新型钯（II）配合物。
