(Eu(4,4,4-trifluoro-1-(2-furyl)-1,3-butanedionate)3)(2,2'-bipyridine) | 103474-71-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶及其衍生物
• 英文名称: (Eu(4,4,4-trifluoro-1-(2-furyl)-1,3-butanedionate)3)(2,2'-bipyridine)
• CAS: 103474-71-1
• 化学式: C₃₄H₂₀EuF₉N₂O₉
• 分子量: 923.486
• InChiKey: OPEOWBGZSLJZGO-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 重原子数：
  None
• 可旋转键数：
  None
• 环数：
  None
• sp3杂化的碳原子比例：
  None
• 拓扑面积：
  None
• 氢给体数：
  None
• 氢受体数：
  None

反应信息

• 作为产物：
  描述：

  2,2'-联吡啶 、 europium(III) chloride hexahydrate 、 4,4,4-三氟-1-(2-呋喃基)-1,3-丁二酮 在 NaOH 作用下， 以 乙醇 、 水 为溶剂， 以69%的产率得到(Eu(4,4,4-trifluoro-1-(2-furyl)-1,3-butanedionate)3)(2,2'-bipyridine)
  参考文献：
  名称：

  X-ray structure and temperature dependent luminescent properties of two bimetallic europium complexes

  摘要：

  The structural, luminescent and temperature dependent luminescent properties of two homodinuclear europium complexes bridged by 2,2'-bipyrimidine (bpm) are reported. beta-Diketonate ligands 4,4,4-trifluoro-1-(2-furyl)-1,3-butanedione (tfa) and 4,4,4-trifluoro-1-(2-thienyl)-1,3-butanedione (tta) are used as capping ligands resulting in complexes of the form [Eu(tfa)(3)](2)bpm (1) and [Eu(tta)(3)](2)bpm (2). All Eu-III ions are eight coordinate with six O atoms from the beta-diketones and two N atoms from the polyazine bridging ligand. Excitation of the beta-diketonate ligands tfa or tta at ca. 340 nm in toluene solutions results in the characteristic Eu-III emission in the visible region of the spectrum. The emission intensity and lifetime associated with the Eu-III centers decrease as the temperature of the solution is increased. Lifetime measurements are fit to a monoexponential while the temperature dependent lifetime data is fit to an Arrhenius-type equation. Evaluation of the data in comparison to data obtained from the monometallic Eu-III analogs reveal very similar photoluminescent properties. This suggests little electronic communication between Eu-III ions via the polyazine bpm bridging ligand. (C) 2007 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.poly.2007.12.001

文献信息

• Preparation, spectral and Judd Ofelt analyses of luminous Octa-coordinated Europium (III) complexes
  作者：Anjli Hooda、Devender Singh、Anuj Dalal、Kapeesha Nehra、Sumit Kumar、Rajender Singh Malik、Ramesh Kumar、Parvin Kumar

  DOI：10.1016/j.jphotochem.2023.114646

  日期：2023.6

  trivalent complexes of europium were prepared on reaction of EuCl3·6H2O, fluorinated 1,3-diketone and 2,2′-bipyridine or its derivatives in the molar ratio of 1:3:1 respectively. Structural analysis of prepared complexes was done via spectral study. Luminescence features of synthesized complexes have been explored by the photoluminescence and decay spectral profile. Strong emission in the red spectral region

  以EuCl 3 ·6H 2 O、氟化1,3-二酮和2,2'-联吡啶或其衍生物按1:3:1的摩尔比分别反应制备了铕杂配三价配合物。通过光谱研究对制备的复合物进行结构分析。合成复合物的发光特征已经通过光致发光和衰变光谱曲线进行了探索。对应电偶极子5 D 0  →  7 F 2的 Eu 3+离子在红色光谱区观察到强发射过敏过渡。计算和讨论了辐射跃迁概率以及 Judd-Ofelt 参数。如其 CIE 颜色坐标所示，配合物在可见光谱中发出红光对于创建有效的显示和照明设备至关重要。