Pascu Mirela, Marmier Mathieu, Schouwey Clément, Scopelliti Rosario, Holstein Julian J, Bricogne Gérard, Severin Kay
Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne (Switzerland).
Chemistry. 2014 May 5;20(19):5592-600. doi: 10.1002/chem.201400285. Epub 2014 Apr 2.
The facile synthesis of anionic bipyridyl ligands with dinuclear clathrochelate cores is described. These metalloligands can be obtained in high yields by the reactions of M(ClO4 )2 (H2 O)6 (M: Zn, Mn, or Co) with 4-pyridylboronic acid and 2,6-diformyl-4-methylphenol oxime or 2,6-diformyl-4-tert-butylphenol oxime, followed by deprotonation. The ligands are interesting building blocks for metallasupramolecular chemistry, as evidenced by the formation of a Pt-based molecular square and four coordination polymers with 2D or 3D network structures. Competition experiments reveal that the utilization of anionic bipyridyl ligands can result in significantly more stable assemblies.
描述了具有双核笼形螯合物核心的阴离子联吡啶配体的简便合成方法。通过M(ClO₄)₂(H₂O)₆（M：Zn、Mn或Co）与4-吡啶硼酸和2,6-二甲酰基-4-甲基苯肟或2,6-二甲酰基-4-叔丁基苯肟反应，然后去质子化，可以高产率获得这些金属配体。这些配体是金属超分子化学中有趣的构建单元，基于铂的分子正方形以及四种具有二维或三维网络结构的配位聚合物的形成证明了这一点。竞争实验表明，使用阴离子联吡啶配体可以产生明显更稳定的组装体。
