Europium(3+);7-oxocyclohepta-1,3,5-trien-1-olate | 14283-86-4

• 分子结构分类: 有机化合物 - 碳氢化合物衍生物 - 环庚三烯酮
• 英文名称: Europium(3+);7-oxocyclohepta-1,3,5-trien-1-olate
• CAS: 14283-86-4
• 化学式: C₂₁H₁₅EuO₆
• 分子量: 515.307
• InChiKey: WQHWOXKKEDWRHR-UHFFFAOYSA-K

计算性质

• 辛醇/水分配系数(LogP)：
  0.36
• 重原子数：
  28
• 可旋转键数：
  0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  120
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  Europium(3+);7-oxocyclohepta-1,3,5-trien-1-olate 、 sodium tropolonate 以 甲醇 、 水 、 乙腈 为溶剂， 生成
  参考文献：
  名称：

  Chelate Chemistry. III. Chelates of High Coordination Number

  摘要：

  DOI：

  10.1021/ja00949a009
• 作为产物：
  描述：

  生成 Europium(3+);7-oxocyclohepta-1,3,5-trien-1-olate
  参考文献：
  名称：

  Chelate Chemistry. III. Chelates of High Coordination Number

  摘要：

  DOI：

  10.1021/ja00949a009

文献信息

• Crystal field aspects of vibrational spectra
  作者：L.G. Hulett、D.A. Thornton

  DOI：10.1016/0022-2860(72)87036-4

  日期：1972.7

  relationships between thermodynamic parameters and v Ln-O are discussed and the nature of the variation of v Ln-O with 4ƒ-orbital population is considered to provide evidence for small but finite crystal field stabilization in all the complexes except those of the 4f 0 , 4ƒ 7 and 4ƒ 14 ions.

  摘要 测定了[LnT 3 ] n 和M[LnT 4 ]（Ln = 镧系元素离子，T = tropolonate 阴离子，M = Na，Li）两个系列镧系(III) tropolonates 的红外光谱。tris(tropolonates) 的光谱表现出四个频率为 -1 的波段，这些波段对镧系元素离子非常敏感，因此被指定为耦合的金属-氧拉伸模式 v Ln-O。这些分配得到了先前关于 [MT 3 ]（M = 第一个过渡系列金属（III）离子）光谱和 [CuT 2 ] 光谱中 18 O 引起的位移的研究的支持，tris（tropolonates）下降分为两类：4ƒ 0 –4ƒ 10 离子的多核复合物 (n > 1) 和源自 4ƒ 11 –4ƒ 14 离子的单核物质 (n = 1)。这两类的光谱表现出不同的 b 和模式，并且 v Ln-O 的显着增加伴随着 4ƒ 11 Er(III) 复合物之前的结构转变。同构四元
• Spectroscopy and non-radiative processes in Gd3+, Eu3+ and Tb3+ tropolonates
  作者：B.S Santos、C de Mello Donegá、G.F de Sá、L.F.C de Oliveira、P.S Santos

  DOI：10.1016/s1386-1425(98)00143-7

  日期：1998.11

  Complexes of Eu3+, Gd3+, and Tb3+ with tropolone (tropolone = 2-hydroxy-2,4,6-cycloheptatrien-1-one) were synthesized and characterized by C and H elemental analysis, infrared vibrational spectroscopy, X-ray powder diffraction analysis and Raman vibrational spectroscopy. The results show that the complexes are isostructural and have the formula [Ln(trop)(3)], where Ln = Eu3+, Gd3+ or Tb3+ and trop = tropolone. The characteristic luminescence of the Eu3+ and Tb3+ ions was not observed either upon ligand excitation (300-380nm) or upon direct f-f excitation, not even at 4.2 K. In order to understand this phenomenon the spectroscopic properties of the Gd(trop)(3) complex (absorption spectra at 298 K, excitation and emission spectra from 4.2 to 298 K and decay time measurements from 20 to 298 K) were investigated. The emission spectra show three distinct bands, which are ascribed to ligand electronic states: a singlet state, S-1 (pi-pi*), at 24270 cm(-1), and two triplet states, T-1 and T-2, at 15630 cm(-1) and 16610 cm(-1), respectively. Both triplet states are situated below the emitting states of the Eu3+ and Tb3+ ions (D-5(o) and D-5(4), respectively), thus suppressing the luminescence from these states by back-transfer. (C) 1998 Elsevier Science B.V. All rights reserved.
• Gmelin Handbuch der Anorganischen Chemie, Gmelin Handbook: Sc: MVol.D3, 4.3.10.1, page 54 - 61
  作者：

  DOI：——

  日期：——
• Day, V. V., Diss. Abstr. Intern. B 30 (1970) S. 4079/80
  作者：Day, V. V.

  DOI：——

  日期：——
• Chelate Chemistry. III. Chelates of High Coordination Number
  作者：E. L. Muetterties、C. M. Wright

  DOI：10.1021/ja00949a009

  日期：1965.11