Abstract
The effect of modification of benzoylferrocene periphery on catalytic activity toward drying of alkyd resins has been investigated by the combination of experimental techniques. A series of substituted ferrocenes have been synthesized and characterized by analytical and spectroscopic tools including X-ray diffraction analysis on single crystals. The electrochemical behavior of the ferrocene derivatives has been elucidated by cyclic voltammetry and rotation disk voltammetry. The activity toward room temperature curing of alkyd resin has been evaluated by standard mechanical tests on coated plates, which enabled to establish a structure/catalytic activity relationship. Fast drying of test coatings has been observed for formulations of (3-methoxybenzoyl) ferrocene. Time-resolved infrared spectroscopy in combination with attenuated total reflectance sampling technique enabled to reveal the kinetic origin of the improved performance for this ferrocene derivative.
Highlights
Ferrocene, [(η5 -C5 H5 )2 Fe], is under comprehensive scrutiny by many research groups due to its unique structural and electrochemical properties, easy derivatization and high thermal stability [1].It has found many applications in various areas but the most prominent one is the use in catalysis.Chiral ferrocene-based ligands with tunable electronic properties are used for assembly of highly selective catalysts for asymmetric organic synthesis [2,3]
This study has described changes in catalytic power of alkyd dries induced by subtle modification
The substitution effect has been demonstrated on derivatives of ferrocene, which was chosen due to its unique structure, chemical inertness and a pronounced FeII /FeIII redox couple
Summary
Ferrocene, [(η5 -C5 H5 ) Fe], is under comprehensive scrutiny by many research groups due to its unique structural and electrochemical properties, easy derivatization and high thermal stability [1].It has found many applications in various areas but the most prominent one is the use in catalysis.Chiral ferrocene-based ligands with tunable electronic properties are used for assembly of highly selective catalysts for asymmetric organic synthesis [2,3]. Ferrocene, [(η5 -C5 H5 ) Fe], is under comprehensive scrutiny by many research groups due to its unique structural and electrochemical properties, easy derivatization and high thermal stability [1]. It has found many applications in various areas but the most prominent one is the use in catalysis. Chiral ferrocene-based ligands with tunable electronic properties are used for assembly of highly selective catalysts for asymmetric organic synthesis [2,3]. Mild and reversible redox process FeII /FeIII makes ferrocene a suitable catalyst of Fenton-like reactions, which are utilized for degradation of organic contaminants in wastewater e.g., dye pollutants or residual antibiotics [6,7,8]. Ferrocene and several acyl-substituted derivatives were used as photoinitiators for anionic polymerization of alkyl α-cyanoacrylate [9,10]
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