Abstract
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) º, V = 3011.9(11) Å3, Z = 4, Dc = 1.353 mg·m−3, μ = 0.633 mm−1, F (000) = 1300, and final R1 = 0.0788, ωR2 = 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.
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