Two-Step Synthesis of Linear and Bent Dicarboxylic Acid Metalloligands with Lengths of up to 3 nm.,Inorganic Chemistry

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Two-Step Synthesis of Linear and Bent Dicarboxylic Acid Metalloligands with Lengths of up to 3 nm.
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2020-09-22 , DOI: 10.1021/acs.inorgchem.0c02358
Ophélie M Planes ₁ , Suzanne M Jansze ₁ , Rosario Scopelliti ₁ , Farzaneh Fadaei-Tirani ₁ , Kay Severin ₁

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Nanometer-sized polycarboxylate ligands are interesting building blocks for metallasupramolecular chemistry, but access to these compounds is often limited by complicated synthetic pathways. Here, we describe a simple two-step protocol, which allows preparing linear and bent dicarboxylate ligands with lengths of up to 3 nm from commercially available compounds. The ligands are prepared by iron-templated polycondensation reactions involving arylboronic acids and nioxime. The final products contain two iron clathrochelate complexes and two terminal carboxyphenylene groups. To demonstrate that the new ligands are suitable for the construction of more complex molecular nanostructures, we have prepared a Cu-based metal–organic polyhedron, which represents the largest M₄L₄ cage described so far.

中文翻译：

线性和弯曲的二羧酸金属配体的两步合成，最大长度为3 nm。

纳米级的多羧酸盐配体是金属超分子化学中令人感兴趣的组成部分，但获得这些化合物的途径通常受到复杂的合成途径的限制。在这里，我们描述了一个简单的两步协议，该协议允许从市售化合物制备线性和弯曲的二羧酸配体，其最长可达3 nm。配体通过涉及芳基硼酸和肟的铁模板缩聚反应制备。最终产物包含两个笼形铁螯合物和两个末端羧基亚苯基。为了证明新的配体适合于构建更复杂的分子纳米结构，我们制备了代表最大M ₄ L ₄的Cu基金属有机多面体。到目前为止描述的笼子。

更新日期：2020-10-05

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