Mohamed Rania G, Elantabli Fatma M, Helal Nadia H, El-Medani Samir M
Chemistry Department, Faculty of Science, Fayoum University, Fayoum, Egypt.
Chemistry Department, Faculty of Science, Fayoum University, Fayoum, Egypt.
Spectrochim Acta A Mol Biomol Spectrosc. 2015 Apr 15;141:316-26. doi: 10.1016/j.saa.2015.01.054. Epub 2015 Jan 30.
Thermal reaction of M(CO)6 (M=Cr, Mo or W) with a Schiff base (DMPA) derived from the condensation of 4,5-dimethyl-1,2-phenylenediamine and pyridine-2-carboxaldehyde in THF in absence and presence of a secondary ligand; 2-aminobenzimidazole (Abz), thiourea (Tu) or 2-(2'-pyridyl)benzimidazole (pybz) were studied. The reaction of Cr(CO)6 gave the four complexes Cr2(CO)2(DMPA)2; 1, Cr(DMPA)2(Abz)2; 2, Cr2(CO)4(DMPA)2(Tu)2; 3 and Cr(DMPA)2(Pybz); 4, while the thermal reaction of Mo(CO)6 resulted in the formation of the two complexes Mo2(O)6(DMPA)2; 5, and Mo2(O)2(CO)2(DMPA)2(Tu)2; 6. Thermal reaction of W(CO)6 and the Schiff base DMPA gave the complex W(O)2(DMPA)2; 7. The ligand DMPA and its metal complexes have been reported and characterized based on elemental analyses, IR, (1)H NMR, magnetic measurements, and thermal analysis. Cyclic voltammetry and biological activity were also investigated.
研究了在四氢呋喃中，M(CO)6（M = 铬、钼或钨）与由4,5 - 二甲基 - 1,2 - 苯二胺和吡啶 - 2 - 甲醛缩合得到的席夫碱（DMPA）在不存在和存在第二配体（2 - 氨基苯并咪唑（Abz）、硫脲（Tu）或2 - (2'-吡啶基)苯并咪唑（pybz））的情况下的热反应。Cr(CO)6的反应生成了四种配合物：Cr2(CO)2(DMPA)2；1、Cr(DMPA)2(Abz)2；2、Cr2(CO)4(DMPA)2(Tu)2；3和Cr(DMPA)2(Pybz)；4，而Mo(CO)6的热反应导致形成了两种配合物：Mo2(O)6(DMPA)2；5和Mo2(O)2(CO)2(DMPA)2(Tu)2；6。W(CO)6与席夫碱DMPA的热反应生成了配合物W(O)2(DMPA)2；7。基于元素分析、红外光谱、（1）H核磁共振、磁性测量和热分析，对配体DMPA及其金属配合物进行了报道和表征。还研究了循环伏安法和生物活性。
