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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Nitric oxide reactivity of copper(ii) complexes of bidentate amine ligands: Effect of substitution on ligand nitrosation
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Nitric oxide reactivity of copper(ii) complexes of bidentate amine ligands: Effect of substitution on ligand nitrosation

机译：二齿胺配体铜（ii）配合物的一氧化氮反应性：取代对配体亚硝化的影响

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摘要

Three copper(ii) complexes with bidentate ligands L _1, L _2 and L _3 [L _1, N,N ~/- dimethylethylenediamine; L _2, N,N /-diethylethylenediamine and L _3, N,N /-diisobutylethylenediamine], respectively, were synthesized as their perchlorate salts. The single crystal structures for all the complexes were determined. The nitric oxide reactivity of the complexes was studied in acetonitrile solvent. The formation of thermally unstable [Cu ~(II)-NO] intermediate on reaction of the complexes with nitric oxide in acetonitrile solution was observed prior to the reduction of copper(ii) centres to copper(i). The reduction was found to result with a simultaneous mono- and di-nitrosation at the secondary amine sites of the ligand. All the nitrosation products were isolated and characterized. The ratio of the yield of mono- and di-nitrosation product was found to be dependent on the N-substitution present in the ligand framework.
机译：具有双齿配体L _1，L _2和L _3 [L _1，N，N〜/-二甲基乙二胺的三个铜（ii）配合物;分别合成了L _2，N，N /-二乙基乙二胺和L _3，N，N /-二异丁基乙二胺]作为高氯酸盐。确定所有配合物的单晶结构。在乙腈溶剂中研究了配合物的一氧化氮反应性。在将铜（ii）中心还原为铜（i）之前，观察到在络合物与一氧化氮在乙腈溶液中反应后形成的热不稳定[Cu〜（II）-NO]中间体。发现还原是在配体的仲胺位点同时进行亚硝化。分离并表征了所有亚硝化产物。发现单亚硝化产物和二亚硝化产物的产率之比取决于存在于配体骨架中的N-取代。

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