Comparison of Inverse and Regular 2-Pyridyl-1,2,3-triazole “Click” Complexes: Structures, Stability, Electrochemical, and Photophysical Properties
作者:Warrick K. C. Lo、Gregory S. Huff、John R. Cubanski、Aaron D. W. Kennedy、C. John McAdam、David A. McMorran、Keith C. Gordon、James D. Crowley
DOI:10.1021/ic502557w
日期:2015.2.16
3-triazol-1-yl)pyridine, and their palladium(II), platinum(II), rhenium(I), and ruthenium(II) complexes have been synthesized in good to excellent yields. The properties of these inverse “click” complexes have been compared to the isomeric regular compounds using a variety of techniques. X-ray crystallographic analysis shows that the regular and inverse complexes are structurally very similar. However,
两个相反的2-吡啶基-1,2,3-三唑“点击”配体,2-(4-苯基-1 H -1,2,3-三唑-1-基)吡啶和2-(4-苄基-1已经合成了H -1,2,3-三唑-1-基)吡啶及其钯(II),铂(II),rh(I)和钌(II)配合物。已使用多种技术将这些逆“点击”复合物的性质与同分异构的规则化合物进行了比较。X射线晶体学分析表明,正则和逆向复合物在结构上非常相似。但是,异构体的化学和物理性质完全不同。配体交换研究和密度泛函理论(DFT)计算表明,规则2-(1- R -1 H-1,2,3-三唑-4-基)吡啶(R =苯基,苄基)配体比与反2-(4 - R -1 H -1,2,3-三唑-1)形成的配体更稳定-基)吡啶(R =苯基,苄基)“点击”螯合剂。此外,二已显示“喀哒”螯合剂的-2,2'-联吡啶(bpy)钌(II)配合物具有短的激发态寿命,在三唑逆情况下,会导致2-吡啶基-1,2的射出,3-三