| 363621-70-9

• CAS: 363621-70-9
• 化学式: CF₃O₃S*C₁₃₁H₁₇₉N₃O₇Re
• 分子量: 2243.16
• InChiKey: AWUHMIMBZYDMNP-UHFFFAOYSA-M

反应信息

• 作为产物：
  描述：

  乙腈 、 silver trifluoromethanesulfonate 、 以 二氯甲烷 、 乙腈 为溶剂， 生成 silver(I) chloride 、
  参考文献：
  名称：

  Photophysics of π-Conjugated Metal−Organic Oligomers:  Aryleneethynylenes that Contain the (bpy)Re(CO)₃Cl Chromophore

  摘要：

  A comprehensive study of a series of four monodisperse, metal-organic T-conjugated oligomers of varying length is reported. The oligomers are based on the aryleneethynylene architecture, and they contain a 2,2 ' -bipyridine-5,5 ' -diyl (bpy) metal binding unit. The photophysical properties of the free oligomers and their complexes with the (L)Re-I(CO)(3)X chromophore (where L = the bpy-oligomer and X = Cl or NCCH3) were explored by a variety of methods including electrochemistry, UV-visible absorption, variable temperature photoluminescence (PL), transient absorption (TA), and time-resolved electron paramagnetic spectroscopy (TREPR). The absorption of the free oligomers and the metal complexes is dominated by the pi,pi* transitions of the pi -conjugated oligomers. The free oligomers feature a strong blue fluorescence that is quenched entirely in the (L)Re-I(CO)3X complexes. The metal-oligomers feature a weak, relatively long-lived red photoluminescence that is assigned to emission from both the 3 pi,pi* manifold of the pi -conjugated system and the d pi Re --> pi* bpy-oligomer metal-to-ligand charge transfer ((MLCT)-M-3) state. On the basis of a detailed analysis of the PL, TA, and TREPR results an excited-state model is developed which indicates that the oligomer-based (3)pi,pi* state and the (MLCT)-M-3 states are in close energetic proximity. Consequently the photophysical properties reflect a composite of the properties of the two excited-state manifolds.

  DOI：

  10.1021/ja015813h