Synthesis, crystal structure, Hirshfeld surface analysis and determination of antioxidant activity for a new mononuclear tris-oxalato-chromium(III) complex
作者:Rihab Dridi、Badiaa Essghaier、Saoussen Namouchi Cherni、Mohamed Faouzi Zid
DOI:10.1016/j.molstruc.2021.130560
日期:2021.9
analysis. In the crystal structure, the Cr(III) ion is surrounded by six oxygen atoms from three oxalate ligands, forming a distorted octahedral environment. The charge compensation is accomplished by the incorporation of 5-methylbenzimidazolium cations. Crystal packing is mostly governed by strong OH…O and NH…O hydrogen bond interactions. Intermolecular interactions in the crystal structure were quantified
采用慢蒸发法制备了新的金属有机材料三甲基-三甲基苯并咪唑鎓(三氧杂铬酸酯(III))三水合物((C 8 H 9 N 2)3 [Cr(C 2 O 4)3 ] .3H 2 O)。室温,并通过X射线衍射,光谱学和热分析进行表征。在晶体结构中,Cr(III)离子被来自三个草酸盐配体的六个氧原子包围,形成了扭曲的八面体环境。通过引入5-甲基苯并咪唑鎓阳离子来完成电荷补偿。晶体堆积主要受强O H…O和N的控制H…O氢键相互作用。晶体结构中的分子间相互作用通过Hirshfeld表面分析定量。TGA表明合成的配合物具有相当的稳定性。光吸收显示带隙能量,表明标题化合物的半导体性质。此外,还进行了3个测试,即1,1-二苯基-2-甲基苯并肼(DPPH),ABTS自由基清除和三价铁还原能力(FRAP)方法,并成功显示出显着的抗氧化活性。