Structural, Theoretical and Biological Studies of (Z)-3-Amino-N-(3-Amino Pyrazine-2-Carbonyl) Pyrazine-2-Carbohydrazonic Acid (APA;L) and Its Cu²⁺, Co²⁺, Pt⁴⁺and Pd²⁺Chelates  

作　　者：Mosaad R. Mlahi Mohsen M. Mostafa Mosaad R. Mlahi;Mohsen M. Mostafa(Faculty of Science, Department of Chemistry, Amran University, Amran, Yemen;Faculty of Science, Department of Chemistry, Mansoura University, Mansoura, Egypt)

机构地区：[1]Faculty of Science, Department of Chemistry, Amran University, Amran, Yemen [2]Faculty of Science, Department of Chemistry, Mansoura University, Mansoura, Egypt

出　　处：《Open Journal of Inorganic Chemistry》2021年第4期145-175,共31页无机化学期刊（英文）

摘　　要：New chelates derived from the novel ligand, (Z)-3-amino-N-(3-amino pyrazine-2-carbonyl)pyrazine-2-carbohydrazonic acid (<strong>APA</strong>, <strong>L</strong>), with Cu²⁺, Co²⁺, Pt⁴⁺ and Pd²⁺ salts were investigated. The results suggest that APA acts as mononegative tridentate in the case of Cu²⁺, binegative tetradentate in the case of Co²⁺ and as mononegative bidentate towards Pt⁴⁺ and Pd²⁺ chelates. The results of the corrected <i>μ_eff</i>. and spectral suggest the structures of the isolated chelates. The results of the corrected <i>μ_eff</i>. and spectral suggest the geometries of the isolated chelates. Molecular modeling is deduced and chemical reactivity, energy components for chelates and also MEP for <strong>APA</strong> is illustrated. <i>In Vitro</i>, the SOD and radical scavengers like activity of the synthesized compounds Hep G2 liver cancer cells and cytotoxic activity were checked. Metal chelates show potent anti-oxidative activity. The results of cytotoxic activity assay against hepatocellular carcinoma cell line Hep G2 confirmed that Pt⁴⁺ complex has the highest value, while <strong>APA</strong>, Cu²⁺, Co²⁺ and Pd²⁺ chelates have no significant cytotoxic activity.New chelates derived from the novel ligand, (Z)-3-amino-N-(3-amino pyrazine-2-carbonyl)pyrazine-2-carbohydrazonic acid (<strong>APA</strong>, <strong>L</strong>), with Cu²⁺, Co²⁺, Pt⁴⁺ and Pd²⁺ salts were investigated. The results suggest that APA acts as mononegative tridentate in the case of Cu²⁺, binegative tetradentate in the case of Co²⁺ and as mononegative bidentate towards Pt⁴⁺ and Pd²⁺ chelates. The results of the corrected <i>μ_eff</i>. and spectral suggest the structures of the isolated chelates. The results of the corrected <i>μ_eff</i>. and spectral suggest the geometries of the isolated chelates. Molecular modeling is deduced and chemical reactivity, energy components for chelates and also MEP for <strong>APA</strong> is illustrated. <i>In Vitro</i>, the SOD and radical scavengers like activity of the synthesized compounds Hep G2 liver cancer cells and cytotoxic activity were checked. Metal chelates show potent anti-oxidative activity. The results of cytotoxic activity assay against hepatocellular carcinoma cell line Hep G2 confirmed that Pt⁴⁺ complex has the highest value, while <strong>APA</strong>, Cu²⁺, Co²⁺ and Pd²⁺ chelates have no significant cytotoxic activity.

关 键 词：Aminopyrazine Density Function Theory Calculations Antioxidant and Cytotoxic Activity Biological Studies 

分 类 号：O62[理学—有机化学]