Synthesis, characterisation, thermal properties and biological activity of coordination compounds of novel selenosemicarbazone ligands

Publication date: Available online 12 February 2020Source: Journal of Molecular StructureAuthor(s): Talib H. Mawat, Mohamad J. Al-JebooriAbstractA series of novel metal complexes with bidentate selenosemicarbazone Schiff-base ligands HL1 and HL2 are reported. The reaction of 2-(((3-nitrophenyl)amino)(phenyl) methyl)cyclohexan-1-one and 2-((4-methoxyphenyl)(phenylamino)methyl)cyclohexan-1-one with an ethanolic mixture of KSeCN and NH2NH2 afforded the preparation of the new selenosemicarbazone ligands (E)-2-(2-(((3-nitrophenyl) amino)(phenyl)methyl)cyclohexylidene)hydrazine-1-carboselenoamide (HL1) and (E)-2-(2-((4-methoxyphenyl)(phenylamino)methyl)cyclohexylidene)hydrazine-1-carboselenoamide (HL2), respectively. The reaction of ligands with Mn(II), Co(II), Ni(II), Cu(II), Zn(II) and Cd(II) metal ions resulted in the formation of mononucleating complexes of general formula K2[ML2Cl2] and [M'L2], (M = Mn(II), Co(II) and Ni(II); M' = Cu(II), Zn(II) and Cd(II)). The mode of bonding and predicted geometry of complexes were determined through their physico-chemical and spectroscopic measurements. These data indicated the formation of the following; (i) a distorted octahedral geometry about Mn(II), Co(II) and Ni(II), (ii) a distorted square planar around Cu(II), and (iii) a tetrahedral arrangement about Zn(II) and Cd(II) ions. The thermal properties and biological activity of ligands and their metal complexes were studied. The title ligands and their metal complexes were scre...
Source: Journal of Molecular Structure - Category: Molecular Biology Source Type: research

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Source: Molecules - Category: Chemistry Authors: Tags: Article Source Type: research
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Source: International Journal of Biological Macromolecules - Category: Biochemistry Authors: Tags: Int J Biol Macromol Source Type: research
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Source: Colloids and Surfaces B: Biointerfaces - Category: Biochemistry Source Type: research
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Source: Colloids and Surfaces - Category: Biotechnology Authors: Tags: Colloids Surf B Biointerfaces Source Type: research
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Source: Journal of Molecular Structure - Category: Molecular Biology Source Type: research
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