Synthesis and comparative studies of photophysical and electrochemical properties of three different types of new heteroleptic 5-arylazo-8-hydroxyquinoline complexes of rhodium including trans → cis isomerism studies
作者:Amit Maity、Sachinath Bera、Kajal Krishna Rajak
DOI:10.1016/j.jorganchem.2019.02.012
日期:2019.5
determinations and density functional theory (DFT) calculations. Synthesis and comparison of their photophysical and electrochemical properties of a new branch of rhodium(III) complexes of 8-hydroxyarylazo analogues are presented which are never studied before. The ground and excited-state geometries, absorption, and emission properties of the complexes were examined by DFT and TDDFT methods. The excitations
用等量的5-苯基偶氮-8-羟基喹啉(Hq 1),5-(4-氟苯基偶氮)-8-羟基喹啉(Hq 2)和5-分别重熔[Rh(2-phpy)2(Cl)] 2在有氧条件下在甲苯中的(4-硝基苯基偶氮)-8-羟基喹啉(Hq 3)以优异的产率提供了具有通式[Rh(2-phpy)2(q)]的单核橙色化合物。配合物由IR证实1H NMR,ESI质量,EPR,UV-Vis和发射光谱,循环伏安法,单晶X射线结构测定和密度泛函理论(DFT)计算。合成和比较其光物理和电化学性质的8-羟基芳基偶氮类似物的新的铑(III)配合物的一个分支,这是以前从未研究过的。通过DFT和TDDFT方法检查了配合物的基态和激发态几何形状,吸收和发射性质。激发和发射通过自然跃迁轨道(NTO)分析进行研究。通过三重态DFT计算的理论分析,通过3 MLCT或3 ILCT跃迁发生了发射。该顺偶氮配合物的-反式异构研究已经通过实验和理论分析进行。