Synthesis and Crystal Structures of Two Cd(II) Coordination Polymers Assembled by 4-Carboxymethoxy-3-phenylacrylic Acid Ligands
作者:Pan-Lei Xiao、Jia Gu、Da-Yong Peng、Wan-Ming Xiong、Xu-Liang Nie
DOI:10.1007/s10870-022-00938-0
日期:2023.3
Two Cd(II) complexes, [Cd(CMOPAA)(Phen)(H2O)]n (1) and [Cd(CMOPAA)(Bipy)]n (2), (H2CMOPAA = 4-carboxymethoxy-3-phenylacrylic acid, Phen = 1,10-phenanthroline and 2,2′-bipyridine = Bipy) were synthesized with 4-carboxymethoxy-3-phenylacrylic acid ligands by solvothermal condition and structurally characterized by element analysis, IR, TGA and single crystal X-ray diffraction. Complex 1 crystalizes in the monoclinic system, space group C2/c with a = 12.4609 (11) Å, b = 18.7973 (16) Å, c = 13.4544 (12) Å, β = 99.732 (1)°, V = 3106.1 (5) Å3. The asymmetric unit of complex 1 consists of one Cd(II) ion, one CMOPAA2− ligand, one Phen ligand and one H2O. Cd(II) ion is an eight-coordinated distorted dodecahedron geometry. Each CMOPAA2− ligand coordinates with two adjacent Cd(II) ions to form a one-dimensional chain. Complex 2 crystalizes in the triclinic system, space group P-1 with a = 9.407 (3) Å, b = 9.838 (3) Å, c = 11.792 (4) Å, α = 83.974 (4)°, β = 78.392 (3)°, γ = 67.019 (3)°, V = 983.7 (5) Å3. The asymmetric unit of complex 2 consists of one Cd(II) ion, one CMOPAA2− ligand and one Bipy ligand. Cd(II) ion is a seven-coordinated twisted single-cap triangular prism configuration. The hexadentate bridging CMOPAA2− ligands coordinates with four adjacent Cd(II) ions to form a one-dimensional chain. The tetradentate bridging CMOPAA2− ligands link the neighboring one-dimensional chains to form a novel two-dimensional network structure. Two Cd(II) complexes, [Cd(CMOPAA)(Phen)(H2O)]n (1) and [Cd(CMOPAA)(Bipy)]n (2), (H2CMOPAA = 4-carboxymethoxy-3-phenylacrylic acid, Phen = 1,10-phenanthroline and 2,2′-bipyridine = Bipy) were synthesized with 4-carboxymethoxy-3-phenylacrylic acid ligands and structurally characterized by element analysis, IR, TGA and single crystal X-ray diffraction. Complex 1 is a one-dimensional chain and complex 2 is a two-dimensional network structure.
采用溶热法合成了 4-羧基甲氧基-3-苯基丙烯酸配体[Cd(CMOPAA)(Phen)(H2O)]n (1)和[Cd(CMOPAA)(Bipy)]n (2)两种镉(II)配合物(H2CMOPAA = 4-羧基甲氧基-3-苯基丙烯酸,Phen = 1,10-菲罗啉和 2、2′-联吡啶 = Bipy),并通过元素分析、红外光谱、热重分析和单晶 X 射线衍射对其结构进行了表征。复合物 1 呈单斜晶系,空间群为 C2/c,a = 12.4609 (11) Å,b = 18.7973 (16) Å,c = 13.4544 (12) Å,β = 99.732 (1)°,V = 3106.1 (5) Å3。复合物 1 的不对称单元由一个镉(II)离子、一个 CMOPAA2- 配体、一个 Phen 配体和一个 H2O 组成。镉(II)离子是一个八配位的扭曲十二面体。每个 CMOPAA2- 配体与相邻的两个镉(II)离子配位,形成一条一维链。络合物 2 晶体呈三菱系,空间群 P-1,a = 9.407 (3) Å,b = 9.838 (3) Å,c = 11.792 (4) Å,α = 83.974 (4)°,β = 78.392 (3)°,γ = 67.019 (3)°,V = 983.7 (5) Å3。复合物 2 的不对称单元由一个镉(II)离子、一个 CMOPAA2- 配体和一个联吡配体组成。镉(II)离子呈七配位扭曲单帽三角棱柱构型。六齿桥接 CMOPAA2- 配体与四个相邻的 Cd(II)离子配位形成一维链。四价桥接 CMOPAA2- 配体将相邻的一维链连接起来,形成新颖的二维网络结构。两种镉(II)配合物,[Cd(CMOPAA)(Phen)(H2O)]n (1) 和 [Cd(CMOPAA)(Bipy)]n (2),(H2CMOPAA = 4-羧基甲氧基-3-苯基丙烯酸,Phen = 1,10-菲罗啉和 2、2′-联吡啶 = Bipy)合成了 4-羧基甲氧基-3-苯基丙烯酸配体,并通过元素分析、红外光谱、热重分析和单晶 X 射线衍射进行了结构表征。复合物 1 是一维链状结构,复合物 2 是二维网状结构。