Department of Chemistry, Faculty of Science, Port Said, Port Said University, Egypt.
Spectrochim Acta A Mol Biomol Spectrosc. 2011 Oct 15;81(1):215-27. doi: 10.1016/j.saa.2011.05.108. Epub 2011 Jun 28.
The reactions of the two common dyes [2TMPACT and 4PENI] with Mn(II), Co(II), Ni(II) and Cu(II) ions were done. All the isolated complexes have been characterized by physicochemical and spectroscopic techniques. The IR data reflect the bidentate mode of 2TMPACT towards the mononuclear complex [Mn(II)] even its tetradentate in binuclear complexes [Co(II) and Cu(II)]. However, the bidentate mode is the only behavior of 4PENI ligand towards each metal ion in its mononuclear complexes. The UV-vis spectral analysis beside the magnetic moment measurements are proposed different geometries concerning each metal ions with the two ligands under investigation, as the Mn(II)-2TMPACT complex is an octahedral but Mn(II)-4PENI is a tetrahedral geometry. All the synthesized compounds are thermogravimetrically investigated. The proposed thermal decomposition was discussed for each compound with each step as well as, the kinetic parameters were calculated for all preferrible decomposition steps. The mass spectroscopy tool was used to emphasis on the suitable molecular formula proposed and the fragmentation patterns were displayed. The fluorescence properties of the synthesized ligands and their complexes were studied in DMSO at room temperature.
研究了两种常见染料[2TMPACT 和 4PENI]与 Mn(II)、Co(II)、Ni(II)和 Cu(II)离子的反应。所有分离出的配合物均通过物理化学和光谱技术进行了表征。IR 数据反映了 2TMPACT 与单核配合物[Mn(II)]的双齿模式，即使在双核配合物[Co(II)和 Cu(II)]中也是四齿配位。然而，4PENI 配体在其单核配合物中对每种金属离子的唯一行为都是双齿模式。除了磁矩测量外，UV-vis 光谱分析提出了与两种所研究配体有关的每个金属离子的不同几何形状，因为 Mn(II)-2TMPACT 配合物是八面体，但 Mn(II)-4PENI 是四面体几何形状。所有合成的化合物都进行了热重分析。讨论了每个化合物的热分解，讨论了每个步骤，以及计算了所有首选分解步骤的动力学参数。质谱工具用于强调提出的合适的分子式，并显示了碎片模式。研究了在室温下 DMSO 中合成配体及其配合物的荧光性质。
