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首页> 外文期刊>Tetrahedron letters: The International Journal for the Rapid Publication of Preliminary Communications in Organic Chemistry >Heptakis-6-(5-methylene-thioureido-5'-methyl-2,2'-bipyridyl)-beta-cyclodextrin: synthesis and metal complexation study
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Heptakis-6-(5-methylene-thioureido-5'-methyl-2,2'-bipyridyl)-beta-cyclodextrin: synthesis and metal complexation study

机译:Heptakis-6-(5-亚甲基-硫脲基5'-甲基-2,2'-联吡啶基)-β-环糊精:合成和金属络合研究

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摘要

A new heptapode heptakis-6-(5-methylene-thioureido-5'-methyl-2,2'-bipyridyl)-beta-cyclodextrin was prepared and its complexation properties towards metal cations were investigated. Substituting the urea functions by the corresponding thioureas promoted the inversion of the metal coordination selectivity. Preliminary results showed the heptapode unable to complex lanthanides but authorise selective complexation of 'soft' and 'borderline' metal cations.
机译:制备了一种新的七肽-6-(5-亚甲基-硫脲基-5'-甲基-2,2'-联吡啶基)-β-环糊精,并研究了其对金属阳离子的络合性能。用相应的硫脲取代尿素功能促进了金属配位选择性的转化。初步结果表明,该七足动物不能与镧系元素络合,但可以选择性地络合“软”和“边界”金属阳离子。

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