Synthesis, Crystal Structure of a New Co (II) Complex with 3-(4-Ethylbenzoyl) propionic Acid

2nd International Conference on Frontiers of Materials Synthesis and Processing

Wang, Lihua^1 ; Lin, Dandan^2 ; Liang, Qian^2

College of Information and Control Engineering, Weifang University, Weifang

261061, China^1

College of Chemistry and Chemical Engineering, Weifang University, Weifang

261061, China^2

关键词: 2D layer;    Cobalt acetate;    Complex molecules;    Coordinated water;    Intermolecular hydrogen bonds;    One-pot reaction;    Single crystal X-ray diffraction analysis;    Space Groups;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/493/1/012139/pdf
DOI  :  10.1088/1757-899X/493/1/012139

来源: IOP

【 摘 要 】

A new Co(II) complex, [CoL2•(H2O)4]•4H2O (HL = 3-(4-ethylbenzoyl)propionic acid), has been synthesized by one-pot reaction of 3-(4-ethylbenzoyl)propionic acid, NaOH and cobalt(II) acetate tetra hydrate in CH3CH2OH/H2O (v: V = 3: 1) solution. The crystal structure of [CoL2•(H2O)4]•4H2O has been characterized by single crystal X-ray diffraction analysis. The result shows that the Co (II) complex belongs to monoclinic, space group P121/n1 with a = 9.911(2) Å, b = 9.4356(19) Å, c = 32.322(7) Å, β = 94.84(3) °, V = 3011.9(11) Å3, Z = 4, Dc = 1.353 mg•m-3, μ = 0.633 mm-1, F (000) = 1300, and final R 1 = 0.0788, ωR 2 = 0.2311. The geometry around Co (II) atoms is a distorted octahedron. The Co (II) complex molecules form 2D layer structure by the intramolecular and intermolecular hydrogen bonds (O-H•••O) present between the O atoms of uncoordinated and coordinated water molecules and O atoms of 3-(4-ethylbenzoyl) propionic acid.