Synthesis and Crystal Structure of Bis(N’-(Pyridine-3-Carboxaldehyde) Isonicotinoylhydrazone) Zinc(II)

• 作者: Conde Asseng Mariam Evans N. Mainsah Peter T. Ndifon Sally-Judith E. Ntum
• 来源期刊: 无机化学期刊(英文)
• 学科: 化学
• 关键词: Zinc Complex Heterocyclic Schiff Base Isonicotinic Acid Hydrazide (Isonia-zid) Hydrazone X-Ray Structure Spectroscopy
• 年，卷（期）: 2020,（3）
• 页码范围: 25-38
• 页数: 14页
• 分类号: O62

摘要

Zinc complexes of Schiff base ligands exhibit interesting properties which could be exploited for potential applications as catalysts and models for biochemical syste<span style="font-family:Verdana;">ms. In this study, we report of the synthesis of a new zinc Schiff base complex, bis</span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">(N’-(pyridine-3-carboxaldehyde) isonicotinoylhydrazone) zinc(II), which </span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">has been characterized by physico-chemical methods. The X-ray single crystal structure of the complex has also been determined. The Schiff base ligand is bonded</span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;"> to the metal in a monodentate manner, coordinating through the pyridine N-atom, as shown from spectral studies. The crystal structure shows the zinc atom bonded to two Schiff base</span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">s</span></span></span><span><span><span style="font-family:;" "=""><span style="font-family:Verdana;"> and four aqua ligands, with each Schiff base ligand coordinating through its pyridine N-atom forming a distorted octahedral ZnN</span>_{<span style="font-family:Verdana;">2</span>}<span style="font-family:Verdana;">O</span>_{<span style="font-family:Verdana;">4</span>}<span style="font-family:Verdana;"> complex. Two water molecules and two nitrate ions found in the crystal structure link the different monomers through hydrogen bonding to form a layered supramolecular structure.</span></span></span></span>