Synthesis and spectroscopic characterization of dimer, mono- and bi-nuclear copper complexes of 2-[α-(acetyloxime)ethylidenehydrazino]-4,6-dimethylquinoline
Samy, F., Shebl, M., Taha, A., Seleem, H. (2022). Synthesis and spectroscopic characterization of dimer, mono- and bi-nuclear copper complexes of 2-[α-(acetyloxime)ethylidenehydrazino]-4,6-dimethylquinoline. EKB Journal Management System, 65(7), 85-106. doi: 10.21608/ejchem.2021.94071.4456
Fatma Samy; Magdy Shebl; Ali Taha; H. S. Seleem. "Synthesis and spectroscopic characterization of dimer, mono- and bi-nuclear copper complexes of 2-[α-(acetyloxime)ethylidenehydrazino]-4,6-dimethylquinoline". EKB Journal Management System, 65, 7, 2022, 85-106. doi: 10.21608/ejchem.2021.94071.4456
Samy, F., Shebl, M., Taha, A., Seleem, H. (2022). 'Synthesis and spectroscopic characterization of dimer, mono- and bi-nuclear copper complexes of 2-[α-(acetyloxime)ethylidenehydrazino]-4,6-dimethylquinoline', EKB Journal Management System, 65(7), pp. 85-106. doi: 10.21608/ejchem.2021.94071.4456
Samy, F., Shebl, M., Taha, A., Seleem, H. Synthesis and spectroscopic characterization of dimer, mono- and bi-nuclear copper complexes of 2-[α-(acetyloxime)ethylidenehydrazino]-4,6-dimethylquinoline. EKB Journal Management System, 2022; 65(7): 85-106. doi: 10.21608/ejchem.2021.94071.4456

Synthesis and spectroscopic characterization of dimer, mono- and bi-nuclear copper complexes of 2-[α-(acetyloxime)ethylidenehydrazino]-4,6-dimethylquinoline

Egyptian Journal of Chemistry
Article 11, Volume 65, Issue 7, July 2022, Page 85-106  XML PDF (925.81 K)
Document Type: Original Article
DOI: 10.21608/ejchem.2021.94071.4456
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Authors
Fatma Samy email orcid 1; Magdy Sheblorcid 2; Ali Tahaorcid 1; H. S. Seleem2
1Department of Chemistry, Faculty of Education, Ain Shams University, Roxy, Cairo 11341, Egypt
2Chemistry Department, Faculty of Education, Ain Shams University, Roxy, Cairo, 11341, Egypt
Abstract
2-[α-(acetyloxime)ethylidenehydrazino]-4,6-dimethylquinoline (MHQ) and its Cu complexes have been synthesized and characterized by elemental analysis and electronic, vibrational, electron spin resonance and mass spectra. The mononuclear, binuclear and dimeric chelates have been isolated by reaction of the ligand with different CuII salts (nitrate, perchlorate, sulfate, acetate, chloride and bromide)in addition to CuI iodide) in molar ratio 1:1 and 1:2 (metal:ligand). The results showed that the ligand acts as bidante (NN or NO) and tridentate (NNN or NNO). Multilinear regression analysis (MLRA) of the d–d transitions of Cu-MHQ complexes in different solvents vs. Guttmann parameters (AN, DN and ) and solvato parameters (,  and *) have been determined. Full geometrical and structural optimizations of the ligand and its metal complexes have been performed by a PM3 study by using the hyperchem program.
Keywords
Quinoline; hydrazones; copper complexes; molecular modeling; ESR spectra
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