Supramolecular spectroscopic and thermal studies of azodye complexes
作者:A.Z. El-Sonbati、M.A. Diab、A.A. El-Bindary、Sh.M. Morgan
DOI:10.1016/j.saa.2014.02.037
日期:2014.6
the isolated complexes. It is found that the change of substituent affects the thermal properties of azodye rhodanine derivatives and their Cu(II) complexes. The molecular and electronicstructures of the investigated compounds (HLn) were also studied using quantum chemical calculations. According to intramolecular hydrogen bond leads to increasing of the complexes stability. The data revealed that
Supramolecular structure, stereochemistry and substituents effect on the spectral studies of novel ruthenium complexes
作者:A.Z. El-Sonbati、A.A.M. Belal、S.A. Abd El-Meksoud、R.A. El-Boz
DOI:10.1016/j.molstruc.2012.06.016
日期:2012.11
agent) coordinating through NN and OH groups by replacement of a proton from the latter group there by forming a six-membered. Stability of these complexes has been investigated and a considerable interest has also been focused on the synthesis of the azo compounds and its metal complex due to its wide potential applications. In p -azo-rhodanine intramolecular OH⋯Nhydrogenbonds have detected.
摘要 制备了新型 Ru(III) 与 5-(4-烷基苯基偶氮)-2-thioxo-4-噻唑烷酮 (HL n ) 配合物,并通过元素分析、热重分析 (TGA)、 1 H NMR、磁化率和电子光谱技术。提出了复合物的暂定结构。重要的红外 (IR) 波段和主要的 1 H NMR 信号相对于分子结构进行了分配和讨论。光谱显示所有配合物都是八面体,其中氯离子与金属离子相连。光谱数据用于计算重要的配体场参数 B 、β 和 Dq。B 值表明金属-配体 σ 键中的强共价键,而 Dq 值表明中等强配体场。结果表明β-很大程度上取决于供体原子的电负性和配体结构以及p-取代基的影响。配体作为一元(双/三双齿螯合剂)通过 NN 和 OH 基团配位,通过形成六元取代后者的质子。已经研究了这些配合物的稳定性,并且由于其广泛的潜在应用,偶氮化合物及其金属配合物的合成也引起了相当大的兴趣。在对偶氮罗丹宁的分子内 OH⋯N
Supramolecular structure and spectral studies on mixed-ligand complexes derived from β-diketone with azodye rhodanine derivatives
作者:A.Z. El-Sonbati、M.A. Diab、A.A.M. Belal、Sh.M. Morgan
DOI:10.1016/j.saa.2012.08.059
日期:2012.12
all the complexes are non-electrolytes. Bidentate chelating nature of β-diketone and azorhodanine anions in the complexes was characterized by (electronic, infrared and (1)H &(13)C NMR) spectra. Square planar geometry around palladium has been assigned in all complexes. Various ligand and nephelouxetic parameter have been calculated for the complexes. The thermal decomposition for complexes was studied
breast cancer 3HB5 oxidoreductase. The Rh(III) and Ir(III) complexes are six-coordinate distorted octahedral, whereas Pt(II) is four coordinated. The ligand coordinates through the azo dye nitrogen atom and enolic oxygenatom after deprotonation. The molar conductivities show that all the complexes of Pt(II) are non-electrolytes while Rh(III) and Ir(III) complexes are electrolytic nature. The ligands
[Pt(L n)2 ]和[M(L n)2(OH 2)2 ] Cl(M = Rh(III)和Ir(III))的络合物,其中L n =一元二齿五价酸盐5-(4已经制备了β-衍生物苯基偶氮)-2-硫代氧-4-噻唑烷酮(HL n),并通过元素分析,电导率测量,磁化率测量和光谱学(IR,Uv.Vis。和1 H NMR)研究进行了表征。配体(HL 2)的X射线衍射(XRD)图谱是多晶性质。配体的分子,电子结构和量子化学参数(HL n)进行了研究。分子对接用于预测配体(HL n)与乳腺癌3HB5氧化还原酶受体之间的结合。Rh(III)和Ir(III)配合物是六坐标畸变的八面体,而Pt(II)是四坐标的八面体。去质子化后,配体通过偶氮染料的氮原子和烯属的氧原子配位。摩尔电导率表明,Pt(II)的所有配合物均为非电解质,而Rh(III)和Ir(III)的配合物为电解质。配体场参数是使用各种能级图计算的。
Spectroscopic, thermal and geometrical structures of Cu(II) azo rhodanine complexes
作者:A.Z. El-Sonbati、I.M. El-Deen、M.A. El-Bindary
DOI:10.1016/j.molliq.2016.01.002
日期:2016.3
Copper(II) complexes of azo rhodanine (1–3) were prepared and characterized by elemental analyses, IR spectra, X-ray diffraction, thermogravimetric analysis (TGA), molar conductance and magnetic susceptibilities as well as mass spectra. The IR spectra showed that the ligands act as a monobasic bidentate coordinating via nitrogen atom of −N = N− group and oxygen atom of enol form. The X-ray diffraction