Yb(hexafluoroacetylacetone)₃(2,2'-bipyridine) | 348621-97-6

• 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: Yb(hexafluoroacetylacetone)₃(2,2'-bipyridine)
• 英文别名: Yb(hfaa)₃(bpy)
• CAS: 348621-97-6
• 化学式: C₂₅H₁₁F₁₈N₂O₆Yb
• 分子量: 950.383
• InChiKey: YJPDWVMLQJXXNV-UHFFFAOYSA-N

计算性质

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

• 作为产物：
  描述：

  2,2'-联吡啶 、 六氟乙酰丙酮 、 ytterbium(III) chloride hexahydrate 在 ammonium hydroxide 作用下， 以 乙醇 为溶剂， 反应 5.5h， 以83%的产率得到Yb(hexafluoroacetylacetone)₃(2,2'-bipyridine)
  参考文献：
  名称：

  Variant coordination sphere, for efficient photo- and electroluminescence of 0.4–1.8μm, of lanthanide(III) complexes containing a β-diketone ligand with low vibrational frequency C–F bonds and a flexible 2,2′-bipyridine ligand

  摘要：

  Lanthanide tris(beta-diketonate) complexes of variant coordination numbers with the compositions [La(hfaa)(3)(bPY)(2)] (1), [Nd(hfaa)(3)(bPY)(H2O)]center dot 1/2bpy (2), [Sm(hfaa)(3)(bpy)(H2O)]center dot bpy (3) and [Ln(hfaa)(3) (bpy)] (Ln = Nd (4), Sm (5), Eu (6), Ho (7), Er (8) and Yb (9); hfaa = anion of hexafluoroacetylacetone and bpy = 2,2'-bipyridine) have been synthesized and fully characterized. The single crystal analysis of (2) and (3) reveals that Nd and Sm are mononuclear and nine-coordinate (LnO(2)N(2)) with a monocapped square antiprismatic geometry. The photophysical parameters obtained are lower than their anhydrous eight-coordinated analogues. The complexes show high quantum efficiencies in the both visible and NIR regions, which could be related to the formation of highly protected coordination environments (LnO(6)N(4) or LnO(6)N(2)) by the hfaa(-) and bpy ligands around the Ln(III) ions. Finally, these volatile and luminescent complexes were used to fabricate OLEDs. The best Vis-NIR devices with the structures: ITO/CuPc (15 nm)/[Sm(hfaa)(3)(bpy)] or [Nd(hfaa)(3)bpy]:CBP or [Er(hfaa)(3)bpy]:CBP or [Yb(hfaa)(3)bpy]:CBP (50 nm)/BCP (20 nm)/AlQ (30 nm)/LiF (1 nm)/Al (100 nm), show a maximum brightness of 45 cd/m(2) with a current efficiency of 0.19 cd/A for visible devices, while the NIR devices exhibit a maximum NIR irradiance and a maximum external quantum efficiency (EQE) of 28 mu W cm(-2) and 0.022% for Nd(III), 0.50 mu W cm(-2) and 0.011% for Er(III) and 93 mu W cm(-2) and 0.18% for Yb(III), respectively, which indicate highly improved EL performance over devices reported in the literature. (C) 2014 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.poly.2014.08.064

文献信息

• Increase in coordination number of lanthanide complexes with 2,2′-bipyridine and 1,10-phenanthroline by using β-diketonates with electron-withdrawing groups
  作者：Dave R. van Staveren、Gerard A. van Albada、Jaap G. Haasnoot、Huub Kooijman、Anna Maria Manotti Lanfredi、Peter J. Nieuwenhuizen、Anthony L. Spek、Franco Ugozzoli、Thomas Weyhermüller、Jan Reedijk

  DOI：10.1016/s0020-1693(01)00334-6

  日期：2001.4

  Abstract The coordination chemistry of Ln(hfpd)3 (hfpd=1,1,1,5,5,5-hexafluoropentane-2,4-dionate) with phen and bpy depends on the size of the Ln3+ ion and on the used solvent. The complexes [Er(hfpd)3(phen)] (7) and [Er(hfpd)3(bpy)] (14) were obtained from the synthesis of Er(CF3SO3)3 with Hhfpd, CsOH and either 1,10-phenanthroline or 2,2′-bipyridine in acetonitrile. The structure of 7 was determined

  摘要Ln（hfpd）3（hfpd = 1,1,1,5,5,5-六氟戊烷-2,4-二酸酯）与phen和bpy的配位化学取决于Ln3 +离子的大小和所用的溶剂。[Er（hfpd）3（phen）]（7）和[Er（hfpd）3（bpy）]（14）的配合物是由Er（CF3SO3）3与Hhfpd，CsOH和1,10-菲咯啉或2,2'-联吡啶在乙腈中。通过X射线晶体学确定7的结构。根据化学计量和光谱性质，类似的反应但与其他多种镧系元素在甲醇中进行，导致分离出五种不同类型的配合物。稍后在镧系元素中包含元素[Ln（hfpd）3（bpy）]（对于Ln = Dy，Ho和Yb）和[Ln（hfpd）3（phen）]（对于Ln = Tb） ，Ho和Yb），就像7一样，而对于早期的镧系元素，[Ln（hfpd）3（bpy）2]（对于Ln = La和Sm）和[Ln（hfpd）3（phen）2]（对于Ln = La，分离出C