Versatile formation of Ru(II) hydrazone complexes: Structure, theoretical studies and catalytic activity in α-alkylation
作者:Kaliyappan Murugan、Subbarayan Vijayapritha、Venkatachalam Kavitha、Periasamy Viswanathamurthi
DOI:10.1016/j.poly.2020.114737
日期:2020.11
lattices. DFT calculations were carried out to explain the solid structures of complexes 1-3. Moreover, the synthesized complexes were screened as catalysts for the α-alkylation of ketones with alcohols. The effect of various parameters, such as base, solvent, temperature, time, substituents and also catalyst loading, on the catalytic activity were analyzed. The results depict that the complex 3 was found
摘要新的1-(蒽-10-基)亚甲基)-2-(苯并[d]噻唑-2-基)肼(BHA)和1-(蒽-10-基)亚甲基)-2-(喹啉-2)在氯仿-乙醇介质中,以1:1的摩尔比使[yl]肼(QHA)配体与[RuHCl(CO)(E)3](E = PPh3或AsPh3)或[RuCl2(AsPh3)3]反应以合成新的钌配合物。通过元素分析,IR,NMR(1H,13C和31P)光谱,ESI-质谱和单晶XRD技术分析了所有新的钌配合物。XRD的单晶研究揭示了钌离子周围的八面体几何形状。研究还表明,配位体通过形成五个或四个成员的螯合环,与钌金属配位,在配合物1、3和4中作为单阴离子双齿N ^ N供体,在配合物2中作为中性双齿N ^ N供体。通过Hirshfeld表面分析研究了晶格中的分子内相互作用。结果表明,π堆积接触在晶格中起重要作用。进行DFT计算以解释配合物1-3的固体结构。此外,合成的配合物被筛选为酮与醇