Abstract
Four solid compounds with formulae: Co(OAc)2(Im)·H2O (I), Ni(OAc)2(Im)1.5·2H2O (II), Cu2(OAc)4(Im) (III) and Zn(OAc)2(Im)·H2O (IV) (where: Im = 1H-Imidazole) were prepared and characterized by chemical and elemental analysis, powder X-ray diffraction patterns and FTIR spectroscopy. Catalytic properties of each complex for styrene oxidation reaction were investigated. Furthermore, thermal properties of compounds were studied using the TG-DTG and DSC techniques under dry air atmosphere. Additionally, volatile thermal decomposition and fragmentation products were also investigated using the TG-FTIR spectra in air.
Highlights
Complexes are chemical compounds which can be characterized by various functions induced by ligands incorporated into their structure
FTIR spectra were recorded with an IRTracer-100 Schimadzu Spectrometer (3800–800 cm−1 with an accuracy of recording of 1 cm−1, Kyoto, Japan) using KBr pellets
Catalytic effect is related to the presence of metal complexes
Summary
Complexes are chemical compounds which can be characterized by various functions induced by ligands incorporated into their structure. Complexes containing an imidazole ring in their structure are widespread in natural environment and many of them display important biological functions. This N-Donor ligand itself is a well-known heterocyclic aromatic compound which is commonly used as a component of medicines. Many of its derivatives, such as alkaloids and antifungal drugs, have biological functions. Imidazoles are a group of antifungal agents that was introduced in the 1980s, which can be divided into two groups: diazoles—containing two nitrogen atoms in the five-membered azole ring [1,2,3,4,5,6,7,8]. The second ligand has carboxylate group which can create different types of binding with metal ions [9,10]
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