A Series of Nano-sized Metal ion-thiouracil Complexes, tem, Spectral, gamma- irradiation, Molecular Modeling and Biological Studies

被引:7
|
作者
Abou-Melha, Khlood Saad [1 ]
机构
[1] King Khaled Univ, Fac Sci Girls, Dept Chem, Abha, Saudi Arabia
关键词
Thiouracil derivative; SEM; Gamma rays; Spectral; Modeling; Biological;
D O I
10.13005/ojc/310406
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
VO(II), Ni(II), Pd(II), Pt(IV) and UO2 (II) complexes were prepared using H5L ligand (C21H15N9S2O3S2). All the prepared complexes are deliberately discussed using different tools(IR, Uv-Vis, (HNMR)-H-1, ESR (CNMR)-C-13, TGA, TEM, XRD). The octadentate is the main mod of ligand donation, as a neural or trinegativetowards the metal ion. This is verified using molecular modeling as a theoretical tool assert on the stereo structure of the ligand proposed leads to the donation mod. The structural formulas of the complexes were varied inbetween four to six coordination no. except the VO(II) complex is five. Most investigated complexes are thermally unstable due to the presence of crystal water occluded the coordinating crystal. All the spin Hamiltonian parameters as well as molecular orbital parameters were calculated for VO(II) complex. XRD patterns were investigated to calculate the particle size of each compound and display their nanosized by distinguish values. TEM scenes are also supporting the XRD data. Finally the biological activitieswere carried out on different bacteria as well as on fungi. The toxic effect was observed especially with Gram positive bacterium (Bacillus subtilis). Also, the effect on DNA degradation was recorded and display a complete degradation by the use of Pt(IV) and Pd(II) complexes. Whereas, a partial degradation was observed with Ni(II) and UO2 (II) complexes. But, there is no effect observed with the use of ligand and VO(II) complex.
引用
收藏
页码:1897 / 1913
页数:17
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