基于2,6′-二羟基联苯构筑的半刚性四酸配体及其配合物的合成、晶体结构和热稳定性能研究
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摘要
本论文合成了2种新型半刚性多羧酸配体,利用所制得的配体和含氮辅助配体与过渡金属离子在溶剂热条件下得到了2种金属配合物,并通过元素分析、红外光谱、X-射线单晶衍射以及热重分析对配合物的结构和性质进行了研究.通过X-射线单晶衍射仪测试可知配合物1呈现三维柱层结构,配合物2则为二维网状结构.热重分析的数据表明,配合物1和2这两个材料的结构均在温度达到270℃后才开始坍塌,说明这两个材料有着较好的热稳定性能.
In this paper,two complexes based on new semirigid carboxylate ligands and various N-donor ligands have been synthesized under solvothermal conditions.To understand these CPs completely,elemental analysis,IR,single crystal X-ray diffraction and thermogravimetric studies have been carried out.Single-crystal X-ray analysis reveals that 1 has a three-dimensional(3 D)pillared-layer architecture and 2 possesses a 2 Dlayers framework.Thermogravimetric analyses shows that the backbone decomposition of 1 and 2 occurs when the temperature up to 270℃,which indicates complex 1 and 2 have excellent thermostability.
In this paper,two complexes based on new semirigid carboxylate ligands and various N-donor ligands have been synthesized under solvothermal conditions.To understand these CPs completely,elemental analysis,IR,single crystal X-ray diffraction and thermogravimetric studies have been carried out.Single-crystal X-ray analysis reveals that 1 has a three-dimensional(3 D)pillared-layer architecture and 2 possesses a 2 Dlayers framework.Thermogravimetric analyses shows that the backbone decomposition of 1 and 2 occurs when the temperature up to 270℃,which indicates complex 1 and 2 have excellent thermostability.
引文
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[2]孙为银.配位化学[M].北京:化学工业出版社,2004,7.
[3]游效曾.配位化学的结构和性质[M].北京:北京科学出版社,1992,3.
[4]王家强,李俊杰.第二代光催化剂-可见光催化剂的研究进展[J].化工科技市场,2006,1(29):25-27.
[5]Zornoza B,Tellez C,Coronas J,et al.Metal organic framework based mixed matrix membranes:An increasingly important field of research with a large application potential[J].Microporous Mesoporous Mater.,2013,166(15),67-78.
[6]Zheng B,Dong H,Bai J F,et al.Temperature Controlled Reversible Change of the Coordination Modes of the Highly Symmetrical Multitopic Ligand To Construct Coordination Assemblies:Experimental and Theoretical Studies[J].J.Am.Chem.Soc.,2008,130(25),7778-7779.
[7]Li Y W,Ma H,Chen Y Q,et al.Structure Modulation in Zn(II)-1,4-Bis(imidazol-1-yl)benzene Frameworks by Varying Dicarboxylate Anions[J].Cryst.Growth Des.,2012,12(1),189-196.
[8]Zhang S Q,Jiang F L,Wu M Y,et al.Assembly of Discrete One-,Two-,and Three-Dimensional Zn(II)Complexes Containing Semirigid V-Shaped Tricarboxylate Ligands[J].Cryst.Growth Des.,2012,12(3),1452-1463.