基于原位配体反应的锰(Ⅱ)配位聚合物的合成、结构和催化性质  

Synthesis,Structure and Catalytic Properties of Mn(Ⅱ)Coordination Polymer through in Situ Ligand Reaction

作　　者：赵素琴[1] 顾金忠[2] ZHAO Su‑Qin;GU Jin‑Zhong(College of Physics and Electronic Information Engineering,Qinghai University for Nationalities,Xining 810007,China;College of Chemistry and Chemical Engineering,Lanzhou University,Lanzhou 730000,China)

机构地区：[1]青海民族大学物理与电子信息工程学院,西宁810007 [2]兰州大学化学化工学院,兰州730000

出　　处：《无机化学学报》2021年第4期751-757,共7页Chinese Journal of Inorganic Chemistry

基　　金：青海省应用基础研究项目(No.2020-ZJ-705)资助。

摘　　要：采用水热方法,选用含2个氰基的醚氧桥联羧酸配体(Hdbna)和2,2′-联吡啶(2,2′-bipy)与MnCl2·4H2O反应,合成了一个二维配位聚合物[Mn(μ3-Hdpna)(2,2′-bipy)]n (1),并对其结构和催化性质进行了研究。在配合物1中,配体Hdbna在水热反应条件下,通过原位反应被转化成醚氧桥联三羧酸配体(H3dpna)。结构分析结果表明配合物1的晶体属于三斜晶系,P■空间群。配合物1具有二维层结构。研究表明,配合物1在硅腈化反应中表现出较高的催化活性。One 2D coordination polymer, namely [Mn(μ3-Hdpna)(2,2′-bipy)]n(1), has been constructed hydrothermally using Hdbna(Hdbna=5-(2,3-dicyanobenzoxy)nicotic acid), 2,2′-bipy(2,2′-bipy=2,2′-bipyridine), and manganese chloride at 160 ℃. Interestingly, the H3dpna(H3dpna=5-(2,3-dicarboxylphenoxy)nicotic acid) ligand was generated by in situ hydrolysis of cyano groups in Hdbna. The product was isolated as stable crystalline solid and was characterized by IR spectrum, elemental analysis, thermogravimetric analysis(TGA), and single-crystal X-ray diffraction analysis. Single-crystal X-ray diffraction analysis reveals that compound 1 crystallizes in the triclinic system, space group P■. Compound 1 discloses a 2D sheet with an hcb topology. Compound 1 was applied as an efficient heterogeneous catalyst for the cyanosilylation. CCDC: 2025016.

关 键 词：配位聚合物 醚氧桥联三羧酸 催化性质 原位反应 

分 类 号：O614.711[理学—无机化学]