Spectroscopic, DFT and antimicrobial activity of Zn(II), Zr(IV), Ce(IV) and U(VI) complexes of N,N- chelated 4,6-bis (4-chlorophenyl)-2-amino-1,2-dihydropyridine-3-carbinitrile
作者:S.A. Sadeek、S.M. Abd El-Hamid、W.A. Zordok
DOI:10.1002/aoc.4457
日期:2018.9
Four novel metal complexes of 4,6‐bis (4‐chlorophenyl)‐2‐amino‐1,2‐dihydropyridine‐3‐carbinitrile (H2L) with Zn(II), Zr(IV), Ce(IV) and U(VI) were synthesized. The structure was elucidated using elemental analysis, melting point, molar conductivity; spectroscopic techniques (IR, 1H NMR, UV–Vis., mass spectra) as well as thermo gravimetric analysis. The spectroscopic data proved that H2L chelated with
4,6-双(4-氯苯基)-2-氨基-1,2-二氢吡啶-3-碳腈(H 2 L)与Zn(II),Zr(IV),Ce(IV)和合成了U(VI)。使用元素分析,熔点,摩尔电导率阐明了结构;光谱技术(IR,1 H NMR,UV-Vis。,质谱)以及热重分析。光谱数据证明,H 2 L通过N氨基和N碳腈与金属离子作为双齿配体螯合原子。使用密度泛函理论(DFT)确定复合物的分子结构。每个络合物中的中心金属离子为六坐标,其周围的角度从62.74°到166.46°不等。这些值与变形的八面体几何形状一致。计算出的在该区域中发现的配合物的总能量为406.342至-459.717 au,偶极矩从4.675变为13.171D。估计了配体,金属盐和配合物对某些微生物的抗菌和抗真菌活性。与游离配体相比,该复合物显示出显着的抗菌特性。