η5-pentamethylcyclopentadienyl tantalum tetrapentafluorophenoxide | 562809-68-1

• 英文名称: η5-pentamethylcyclopentadienyl tantalum tetrapentafluorophenoxide
• CAS: 562809-68-1
• 化学式: C₃₄H₁₅F₂₀O₄Ta
• 分子量: 1048.41
• InChiKey: IVAYNZALBUVXMS-UHFFFAOYSA-J

反应信息

• 作为产物：
  描述：

  pentamethylcyclopentadienyl tantalum(V) tetrachloride 、 五氟苯酚 在 三乙胺 作用下， 以 甲苯 为溶剂， 以38%的产率得到η5-pentamethylcyclopentadienyl tantalum tetrapentafluorophenoxide
  参考文献：
  名称：

  Luminescent η5-pentamethylcyclopentadienyl tantalum(V) complexes: synthesis, characterization, and emission spectroscopy

  摘要：

  A series of eta(5)-pentamethylcyclopentadienyl tantalum(V) complexes have been prepared and their electronic and emission spectra examined. Compounds of the form Cp*TaX4 (where X = Cl, Br, OC6F5) and Cp*TaCl2X2 (where X = OC6Cl5, 2,6-OC6H3Cl2), as well as CpTaX4, have been found to luminesce at 77 K in frozen glasses (only Cp*TaCl4, reported previously, luminesces at ambient temperature in both solid and fluid solution). The shifts in luminescence maxima with ligand variation lead to the conclusion that the emissive state is a ligand-to-metal charge transfer in which the highest occupied orbital is based on the donor atom of one of the monodentate ligands and the lowest unoccupied orbital is Ta-based. (C) 2002 Elsevier Science B.V. All rights reserved.

  DOI：

  10.1016/s0020-1693(02)01276-8