Abstract

Complex of bis(6-amino-2,4-dimethylpyrimidin-1-ium) tetrachloridecobaltate (II) [C₆H₁₀N₃]₂ [CoCl₄] was synthesized and characterized using several physicochemical techniques, such as FT-IR, ¹H & ¹³C NMR, Hirshfeld surface analysis (HSA) and single crystal X-ray diffraction (XRD) analysis. The XRD and HSA quantified a significant contribution of non-covalent H-bonds interactions in lattice to build an ionic form of the [C₆H₁₀N₃]₂ [CoCl₄] complex. The molecular arrangement is qualified for the desired complex as an alternation of inorganic and organic species, the organic C₆H₁₀N₃ cationic ligand and inorganic [CoCl₄]^2- tetrahedral anionic metal center connected together via several short interactions like –HN–H…Cl, N_ring-H⁺ … Cl and C_ring-H…Cl hydrogen bond interactions. The complex was tested as a catalyst for the oxidation reaction in methanol from 3,5-ditertiarybutylcatechol (3,5-DtBC) to 3,5 ditertiarybutylquinone (3,5-DtBQ). The [C₆H₁₀N₃]₂ [CoCl₄] complex displays a good catalytic activity in aerobic condition, with a reaction rate Vmax = 10.11 × 10⁻⁴ M L⁻¹ h⁻¹ and key kinetics parameters KM = 0.12 M and kcat = 84.08 M⁻¹ h⁻¹.

Title

Ismail warad

Publisher

Ismail warad

Publisher Country

Palestine

Publication Type

Prtinted only

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