[Eu(4,4,4-trifluoro-1-(2-thienyl)-1,3-butadionato)3]2(2,2'-bipyrimidine) | 883456-01-7

• 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-thienyl)-1,3-butadionato)3]2(2,2'-bipyrimidine)
• 英文别名: [Eu2(trifluorothenoylacetone(-H))6(2,2'-bipyrimidine)]；[Eu2(tta)6(bpm)]；[Eu(tta)3]2bpm；(Eu(4,4,4-trifluoro-1-(2-thienyl)-1,3-butanedionate)3)2(2,2'-bipyrimidine)
• CAS: 883456-01-7；917084-59-4
• 化学式: C₅₆H₃₀Eu₂F₁₈N₄O₁₂S₆
• 分子量: 1789.16
• InChiKey: WXHIDPRZPOZKQD-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：

  europium(III) chloride hexahydrate 、 2-噻吩甲酰三氟丙酮 、 2 2'-联嘧啶 在 NaOH 作用下， 以 乙醇 、 水 为溶剂， 以59%的产率得到[Eu(4,4,4-trifluoro-1-(2-thienyl)-1,3-butadionato)3]2(2,2'-bipyrimidine)
  参考文献：
  名称：

  显示纯红色电致发光的双核铕配合物的合成和表征

  摘要：

  通过使用 β-二酮和 2,2'-联嘧啶 (bpm) 分别作为 Eu 离子的敏化配体和桥连配体合成了两种双核 EuIII 配合物，并通过包括单晶 X 射线晶体学在内的各种手段进行表征。使用二苯甲酰甲烷 (dbm) 和三氟苯酰丙酮 (tta) 作为 β-二酮得到 [Eu2(dbm)6(bpm)] (1) 和 [Eu2(tta)6(bpm)] (2)。两者都表现出强烈的分子间 π-π 相互作用，这可能是它们高熔点的原因。双核配合物的吸收、激发和发射光谱分析以及与含有相同 β-二酮配体和 1,10-菲咯啉 (phen) 的类似单核配合物的比较表明，双核配合物遵循一般的发光机制。 LnIII 复合物。具有 ITO/PEDOT/PVK + PBD + 1 10 wt.-%/LiF/Al 结构的 EL 器件显示出纯红色发射，其效率类似于单核配合物的发射效率。(© Wiley-VCH Verlag GmbH

  DOI：

  10.1002/ejic.200500438

文献信息

• Synthesis, electrochemistry and spectroscopy of lanthanide(III) homodinuclear complexes bridged by polyazine ligands
  作者：Reema Sultan、Kalyan Gadamsetti、Shawn Swavey

  DOI：10.1016/j.ica.2005.10.042

  日期：2006.3

  Six new complexes [Eu(tta)(3)](2)bpm, [Er(tta)(3)](2)bpm, [Tb(tta)(3)](2)bpm, [Er(tta)(3)](2)dpp, Pr(tta)(3)bpm and Nd(tta)3bpm (tta = 4,4,4-trifluoro-1-(2-thienyl)-1,3-butanedione, bpm = 2,2'-bipyrimidine, dpp = 2,3-bis(2-pyridyl)pyrazine) were prepared and studied. The electronic absorption spectra of the complexes display pi ->pi* transitions in the UV region. Cyclic voltarnmetry of the complexes show an irreversible reduction followed by a reversible reduction both associated with the tta ligand. Eu(III) reduction in the homodinuclear [Eu(tta)(3)](2)bpm complex occurs as an irreversible reduction at less negative potentials than the tta-based reductions. Emission spectra of the Eu(III) and Tb(III) 'bimetallics are typical of this type of bonding motif with ligand centered (tta) absorptions resulting in 4f-4f transitions in the visible and near infrared region. (c) 2005 Elsevier B.V. All rights reserved.
• X-ray structure and temperature dependent luminescent properties of two bimetallic europium complexes
  作者：Shawn Swavey、Jeanette A. Krause、Daniel Collins、Deepika D’Cunha、Albert Fratini

  DOI：10.1016/j.poly.2007.12.001

  日期：2008.2

  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.