Structure versatility of cobalt complexes of 2-[α-(acetyloxime)ethylidenehydrazino]-4,6-dimethylquinoline; Synthesis, spectral, magnetic and theoretical studies

Samy, Fatma; Taha, Ali; Shebl, Magdy; Seleem, H. S.; Hanafy, F. I.

doi:10.21608/ejchem.2022.138025.6079

Structure versatility of cobalt complexes of 2-[α-(acetyloxime)ethylidenehydrazino]-4,6-dimethylquinoline; Synthesis, spectral, magnetic and theoretical studies

Document Type : Original Article

Authors

¹ Department of Chemistry, Faculty of Education, Ain Shams University, Roxy, Cairo 11341, Egypt

² Chemistry Department, Faculty of Education, Ain Shams University, Roxy, Cairo, 11341, Egypt

³ Department of Chemistry, Faculty of Education, Ain Shams University, Roxy, Cairo 11341, Egypt,

⁴ Department of Chemistry, Faculty of Education, Ain Shams University, Roxy, Cairo 11566, Egypt

10.21608/ejchem.2022.138025.6079

Abstract

Reactions of the hydrazone ligand; 2-[α-(acetyloxime)ethylidenehydrazino]-4,6-dimethylquinoline (MOHQ) with various cobalt(II) salts (acetate, nitrate, sulfate and chloride) yielded dimer, mono and binuclear complexes. The successfully prepared complexes (1-4) have been characterized by using different techniques including elemental analyses, infra-red, electronic and mass spectra, magnetic susceptibility and molar conductivity measurements. The results illustrated that MOHQ behaves as bidentate (NO) and tridentate (NNO) chelating agent. UV/Vis spectra in binary solvent mixtures of Co complexes have been investigated. Co complexes (1-3) under study are preferring water than solvation. The hyperchem program was used to determine geometrical and structural optimizations of cobalt complexes at a PM3 level.

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