Assembly of a 3D Cobalt(II) Supramolecular Framework and Its Applications in Hydrofunctionalization of Ketones and Aldehydes
Assembly of a 3D Cobalt(II) Supramolecular Framework and Its Applications in Hydrofunctionalization of Ketones and Aldehydes
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DOI：
10.3390/chemistry4020029
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发表时间：
2022-04
期刊：
影响因子：
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通讯作者：
Guoqi Zhang;Alex Wang;Haisu Zeng;Shengping Zheng;Michelle C. Neary
中科院分区：
文献类型：
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作者：
Guoqi Zhang;Alex Wang;Haisu Zeng;Shengping Zheng;Michelle C. Neary
合成了一个双位氮配体（E）-N '-（吡啶-4-基亚甲基）异烟酰肼（L），该配体既含有不同的吡啶基配位位点，又含有氢键酰肼-腙部分。Co（NCS）2介导的L的自组装导致合成了一种新的三维（3D）超分子框架（1），其特征在于配位和氢键相互作用。X射线结构分析揭示了1在固态下的形成和配位模式。配位键和氢键相互作用的合理利用被证实并负责构建3D材料。催化研究使用1在活化剂的存在下进行硼氢化和氢化硅烷化反应的酮和醛，并与以前报道的钴基聚合物催化剂的结果进行比较。
A ditopic nitrogen ligand (E)-N′-(pyridin-4-ylmethylene)isonicotinohydrazide (L) containing both divergent pyridyl coordination sites and a hydrogen-bonding hydrazide–hydrazone moiety was synthesized. The Co(NCS)2-mediated self-assembly of L has resulted in the synthesis of a novel 3-dimensional (3D) supramolecular framework (1) that features both coordination and hydrogen bonding interactions. X-ray structural analysis reveals the formation and coordination mode of 1 in the solid state. The rational utilization of coordination bonds and hydrogen bonding interactions is confirmed and responsible for constructing the 3D materials. Catalytic studies using 1 in the presence of an activator are performed for the hydroboration and hydrosilylation reactions of ketones and aldehydes, and the results are compared with previously reported cobalt-based polymeric catalysts.