Mononuclear rhenium(<scp>i</scp>) complexes incorporating 2-(arylazo)phenyl benzyl thioethers: synthesis, structure, spectral, DFT and TDDFT studies
作者:Pallab Mondal、Rupa Sarkar、Amar Hens、Kajal Krishna Rajak
DOI:10.1039/c4ra05699j
日期:——
formation of desired complexes. The crystal structure of the complexes [Re(L1)(CO)3Cl], 1 and [Re(L2)(CO)3Cl], 2 were determined by X-ray diffractometry study. The molecular structures observed in the solid state were retained in the solution (1H and 13C NMR spectra). The ground and excited-state geometries, NMR, absorption, and luminescent properties of three Re(I) complexes were examined by DFT and
[Re(CO)5 Cl]与2-(芳偶氮)苯基苄基硫醚[ArNNC 6 H 4 SCH 2 Ph:Ar = Ph,4-氯苯基,4-硝基苯基](L 1 –L 3)的化学计量反应在回流条件下,在干燥的甲苯中以1:1的比例得到通式fac- [Re(L)(CO)3 Cl]的Re(I)配合物,收率极高。用于本发明的配体是2-(苯基偶氮)苯基苄基硫醚(L 1),2-(4-氯苯基偶氮)苯基苄基硫醚(L 2)和2-(4-硝基苯基偶氮)苯基苄基硫醚(L 3))。元素分析和ESI质谱测量可确保形成所需的络合物。通过X射线衍射研究确定了配合物[Re(L 1)(CO)3 Cl],1和[Re(L 2(CO)3 Cl],2的晶体结构。固态观察到的分子结构保留在溶液中(1 H和13 C NMR光谱)。通过DFT和TDDFT方法检查了三种Re(I)配合物的基态和激发态几何形状,NMR,吸收和发光性质。在对位引入吸电子基团与N