Syntheses, Structures and Catalytic Properties of Two Mn(Ⅱ) and Cd(Ⅱ) Coordination Polymers through in Situ Ligand Reaction

• 作者: ZHAO Su-Qin GU Jin-Zhong
• 来源期刊: 结构化学
• 年，卷（期）: 2021,（6）
• 所属期刊栏目: coordination chemistry
• 页码范围: 785-796
• 页数: 12页
• 语种: 英文
• DOI: 10.14102/j.cnki.0254-5861.2011-3052

摘要

Two coordination polymers, namely [Mn(μ-Hcpia)(bipy)(H2O)2]n (1) and [Cd3(μ3-Hcpia)2(μ- Hbiim)2(μ-H2biim)(H2O)2]n (2), have been constructed hydrothermally using H2cbia (H2cbia = 5-(4?-cyano- benzoxy)isophthalic acid), bipy (bipy = 4,4?-bipyridine), H2biim (H2biim = 2,2?-biimidazole), and manganese or cadmium chlorides at 160 °C. Interestingly, the H3cpia (H3cpia = 5-(4?-carboxylphenoxy)isophthalic acid) ligand was generated by in situ hydrolysis of cyano group in H2cbia. The products were isolated as stable crystalline solids and were characterized by IR spectra, elemental analyses, thermogravimetric analyses (TGA), and single-crystal X-ray diffraction analyses. Both compounds crystallize in the triclinic system, space group P1 . Compound 1 discloses a 1D linear chain of the 2C1 topological type. Adjacent chains are assembled into a 2D supramolecular sheet through O–H???O/N hydrogen bonds. Compound 2 features a 3D framework with a 3,4,4T25 topology. The luminescent and catalytic properties of two compounds were investigated. Compound 1 exhibits a superior catalytic activity in the cyanosilylation at room temperature.