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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >Synthesis and crystal structure of mercury(II) Metal Crown Ether with N-heterocyclic carbene linkage
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Synthesis and crystal structure of mercury(II) Metal Crown Ether with N-heterocyclic carbene linkage

机译:N-杂环卡宾键合汞(II)金属冠醚的合成及晶体结构

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The mercury(II) metal crown ether (2a) was obtained in high yield by reaction of the carbene precursor 1,2-bis[N-(1-naphthyl-methylene) imidazoliumethoxy]benzene dihexafluorophosphate (1) and Hg(OAc)_2. Addition of NaI to the acetone solution of 2a resulted in precipitation of pale yellow solid 2b. The structures of 2a and 2b were determined by single-crystal X-ray diffractometry. Both molecules display a helical conformation with a torsional cycle. The mercury atom in complex 2a is tricoordinated by two intramolecular carbene carbon atoms and an acetate oxygen atom. The mercury atom in complex 2b is tetracoordinated by two intramolecular carbene carbon atoms and two cis-iodine atoms.
机译:通过卡宾前体1,2-双[N-(1-萘基-亚甲基)咪唑基甲氧基]苯二六氟磷酸酯(1)与Hg(OAc)_2反应,高收率获得汞(II)金属冠醚(2a)。 。将NaI添加到2a的丙酮溶液中导致浅黄色固体2b沉淀。 2a和2b的结构通过单晶X射线衍射法确定。两种分子均显示具有扭转循环的螺旋构象。配合物2a中的汞原子被两个分子内卡宾碳原子和一个乙酸氧原子三配位。配合物2b中的汞原子被两个分子内卡宾碳原子和两个顺碘原子四配位。

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