[Lu(hexafluoroacetylacetonate)3(2,2'-bipyridine-N,N'-dioxide)] | 1301267-24-2

• 分子结构分类: 有机化合物 - 有机杂环化合物
• 英文名称: [Lu(hexafluoroacetylacetonate)3(2,2'-bipyridine-N,N'-dioxide)]
• CAS: 1301267-24-2
• 化学式: C₂₅H₁₁F₁₈LuN₂O₈
• 分子量: 984.309
• InChiKey: BBQJARUUKSGLDL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
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• 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：

  N,N'-二氧化-2,2'-联吡啶 、 [tris(hexafluoroacetylacetonato)diaqua]Lu(III) 以 甲苯 为溶剂， 生成 [Lu(hexafluoroacetylacetonate)3(2,2'-bipyridine-N,N'-dioxide)]
  参考文献：
  名称：

  Deciphering Three Beneficial Effects of 2,2′-Bipyridine-N,N′-Dioxide on the Luminescence Sensitization of Lanthanide(III) Hexafluoroacetylacetonate Ternary Complexes

  摘要：

  Lanthanide hexafluoroacetylacetonate ternary complexes with 2,2'-bipyridine-N,N'-dioxide, [Ln(hfa)(3)(bpyO2)], were synthesized for Ln = Eu, Gd, Tb, and Lu and fully characterized by elemental, thermal, and mass-spectrometric analyses. The X-ray crystal structure of [Eu(hfa)(3)(bpyO2)] center dot 0.5C(6)H(6) reveals an octa-coordinate metal ion lying in a severely distorted trigonal dodecahedron geometry; the Eu-O distances lie in the range 2.36-2.44 angstrom with no significant difference between hfa and bpyO2. angstrom detailed comparative photophysical investigation has been carried out to determine the exact influence of the introduction of bpyO2 in the inner coordination sphere of the metal ion in replacement of the two water molecules in [Ln(hfa)(3)(H2O)(2)]center dot While this replacement is detrimental for Tb, it leads to a 15-fold increase in the overall quantum yield for Eu. This large improvement originates from (i) a better sensitization efficiency, the ancillary ligand being responsible for 3/4 of the energy transfer, (ii) elimination of nonradiative deactivation pathways through'harmonics of O-H vibrations, and (iii) reduction in the radiative lifetime. The latter influence is rarely documented, but it accounts here for a approximate to 25% increase in the intrinsic quantum yield, so that more attention should be given to this parameter when designing highly luminescent lanthanide complexes.

  DOI：

  10.1021/ic200450x