europium(III) acetylacetonate | 14284-86-7

• 物质功能分类: 有机原料 - 有机金属类化合物 - 有机铋、钴、镨、钆、镓、铱、铼、钇、铽等
• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: europium(III) acetylacetonate
• 英文别名: Eu(acac)₃；Eu(acetylacetonate)₃；europium acetylacetonate；europium(3+);(Z)-4-oxopent-2-en-2-olate
• CAS: 14284-86-7
• 化学式: C₁₅H₂₁EuO₆
• 分子量: 449.288
• InChiKey: AKYVEELUVDHHLT-LNTINUHCSA-K

物化性质

• 熔点：
  187-189°C

计算性质

• 辛醇/水分配系数(LogP)：
  -0.48
• 重原子数：
  22
• 可旋转键数：
  3
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.4
• 拓扑面积：
  120
• 氢给体数：
  0
• 氢受体数：
  6

安全信息

• TSCA：
  No
• 安全说明：
  S26,S36/37/39
• 危险类别码：
  R36/37/38

反应信息

• 作为反应物：
  描述：

  selenium(IV) oxide 、 europium(III) acetylacetonate 在 油胺 、 油酸 、 十八碳烯 、 三辛基膦 作用下， 反应 1.5h， 生成
  参考文献：
  名称：

  Liquid-Phase Syntheses and Material Properties of Two-Dimensional Nanocrystals of Rare Earth–Selenium Compound Containing Planar Se Layers: RESe₂ Nanosheets and RE₄O₄Se₃ Nanoplates

  摘要：

  Synthesis of diverse two-dimensional nanostructures with unique material properties is of current interest and multidisciplinary importance but remains a challenge for trivalent rare earth (RE)-selenium (Se) compounds because of the weak affinity between hard rare earth cations and soft selenium anions. In this article, for the first time, we report a mild solution approach toward a series of two-dimensional trivalent RE-selenium compounds nanocrystals, namely RESe2 nanosheets (RE = La to Nd, for EuSe2, nanobars were obtained) and RE4O4Se3 nanoplates (RE = Nd, Sm, Gd to Ho), under a high chemical potential of selenium obtained by activating SeO2 powder with oleylamine in high boiling point organic solvents. Both kinds of nanocrystals contain Se with -1 valence in planer Se layers, allowing for a great variability in their crystal structures. Satellite diffraction peaks were observed in the electron diffraction pattern of LaSe2 nanosheets, indicating the presence of Peierls distortion in the Se layers. In the RE4O4Se3 nanoplates, the interaction between Se2- ions and [Se-Se](2-) dumbbells in the Se layers increases when the radii of the RE3+ ions decrease along the lanthanide series, resulting in a narrower optical band gap (from 1.96 to 1.73 eV). The LaSe2 nanosheet films fabricated by drop-casting exhibited good electrical conductivity at room temperature (about 1 Omega.cm(-1)). Further, the RE4O4Se3 nanoplates showed very high light extinction capacity in the visible region (extinction coefficient mu(1); 4.4 x 10(5) cm(-1) for Nd4O4Se3, and 3.1 x 10(5) cm(-1) for Gd4O4Se3), comparable to that (5 x 10(5) cm(-1)) of CuInS2 commonly used in solar cells.

  DOI：

  10.1021/ja4028583
• 作为产物：
  描述：

  europium(III) acetylacetonate hydrate 生成 europium(III) acetylacetonate
  参考文献：
  名称：

  乙酰丙酮稀土：新的制备方法和新的配合物

  摘要：

  已经开发出新的制备方法并将其用于制备几种新的稀土乙酰丙酮稀土络合物。据报道无水钕和三乙酰丙酮euro的晶体形式和无水镧，钕，sa 、,、,和三乙酰丙酮ter的无定形形式。还制备了钕和euro配合物的一元衍生物。描述了配合物的光谱，物理和化学性质。观察到结晶和无定形无水化合物的性质存在明显差异。

  DOI：

  10.1016/0022-1902(77)80059-6
• 作为试剂：
  描述：

  4,5-dibutylphthalodinitrile 在 europium(III) acetylacetonate 作用下， 以49%的产率得到bis(2,3,9,10,16,17,23,24-octabutylphthalocyanine)lutetium(III)
  参考文献：
  名称：

  Synthesis and spectroscopic study of hexadecaalkyl-substituted rare-earth diphthalocyanines

  摘要：

  New hexadecaalkyl-substituted diphthalocyanine complexes of lanthanides (R)Pc(2)Ln (R = Et, or Bu; Ln = Lu, Dy, or Eu) were synthesized by three methods: in solution in the presence of 1,8-diazabicyclo[5.4.0]undec-7-ene, in a melt of a mixture of the reagents, and under microwave irradiation. The first of the above-mentioned procedures has an advantage for the preparation of Dy and Eu diphthalocyanines, whereas the melt synthesis is a method of choice for the preparation of Lu complexes. The reaction time decreases in going from the first to the third method. The structures of the complexes were confirmed by mass spectrometry, NMR spectroscopy, and electronic absorption spectroscopy.

  DOI：

  10.1023/b:rucb.0000035636.77869.f2

文献信息

• Electrochemistry of lanthanoid(III) complexes in dimethyl sulfoxide in the presence of n-Bu4N(acac) and n-Bu4N(dibm)
  作者：Akio Iwase、Yoshinori Araki、Reiko Takahashi

  DOI：10.1016/0013-4686(90)87070-i

  日期：1990.11

  lanthanoid Ln(III) complexes was investigated in Me2SO including n-Bu4N(acac) and n-Bu4N(dibm) as ligands (where acac is the acetylacetonate anion and dibm is the diisobutrylmethanate anion). Reversible one electron reduction waves corresponding to Ln(III) complexes→Ln(II) complexes were observed in the concentration range of 5–20 mM of the ligands, including 1 mM lanthanoid perchlorates and 0.1 M TEAP

  镧系LN（III）络合物的电化学行为在我研究了2 SO包括Ñ -Bu 4 N（ACAC）和Ñ -Bu 4 N（dibm）作为配体（其中ACAC是乙酰丙酮化物阴离子和dibm是diisobutrylmethanate阴离子） 。在5–20 mM的配体浓度范围内观察到了对应于Ln（III）配合物→Ln（II）配合物的可逆的一个电子还原波，包括1 mM镧系高氯酸盐和0.1 M TEAP。在存在5 mM配体的情况下，在0.1 M TEAP中，镧系元素络合物的半波电势为sce -1.66至-2.61 V ，具体取决于镧系元素（III）离子。
• Synthesis and spectral characteristics of cyclohexylmethoxy-substituted phthalocyanines of rare-earth elements
  作者：I. P. Kalashnikova、S. E. Nefedov、L. G. Tomilova、N. S. Zefirov

  DOI：10.1007/s11172-007-0385-5

  日期：2007.12

  New symmetrical metal complexes of the rare-earth element phthalocyanines were synthesized by the reaction of 4,5-bis(cyclohexylmethoxy)phthalonitrile, obtained for the first time, with the rare-earth element salts, as well as starting from the corresponding free phthalocyanine. A correlation between method of the synthesis and the reaction product compositions was studied. Structures of the complexes obtained were confirmed by mass spectrometry, X-ray crystallography, and electronic absorption spectroscopy. All the metal complexes are well soluble in organic solvents.

  新型对称金属配合物稀土元素佛法色酸盐通过首次合成的4,5-双(cyclohexylmethoxy)苯腈与稀土元素盐的反应以及从相应的游离佛法色酸盐出发合成。研究了合成方法与反应产物组成之间的关系。通过质谱、X射线晶体学和电子吸收光谱确认了所获得配合物的结构。所有金属配合物在有机溶剂中均具有良好的溶解性。
• Selective one-step synthesis of triple-decker (porphyrinato)(phthalocyaninato) early lanthanides: the balance of concurrent processes
  作者：Kirill P. Birin、Yulia G. Gorbunova、Aslan Yu. Tsivadze

  DOI：10.1039/c1dt11141h

  日期：——

  An effective one-step approach for the preparation of (porphyrinato)(phthalocyaninato) early lanthanides of type [Br4TPP]Ln[(15C5)4Pc]Ln[Br4TPP], where Br4TPP = 5,10,15,20-tetrakis-(4-bromophenyl)-porphyrinato-ligand, (15C5)4Pc = tetrakis-(15-crown-5)-phthalocyaninato-ligand and Ln = La, Pr, Nd or Eu, is developed. The influence of various factors on the reaction pathway and yields of the complexes is investigated in detail. The developed protocol is found to be general for the early lanthanide subgroup. Variation of the synthetic conditions allowed the determination and isolation of possible side-products, namely heteroleptic double-deckers [Br4TPP]Ln[(15C5)4Pc] (Ln = Nd, Eu) and triple-decker [Br4TPP]Nd[(15C5)4Pc]Nd[(15C5)4Pc]. The peculiarities of the NMR lanthanide-induced shifts (LIS) of resonances of the synthesized triple-decker complexes are precisely investigated. The isostructurality of the synthesized complexes within the series as well as isostructurality with previously synthesized compounds is demonstrated in terms of two-nuclei analysis of LIS.

  一种有效的一步法用于制备类型为 [Br4TPP]Ln[(15C5)4Pc]Ln[Br4TPP] 的 (porphyrinato)(phthalocyaninato) 早期镧系元素化合物，其中 Br4TPP = 5,10,15,20-四(4-溴苯基)-卟啉配体，(15C5)4Pc = 四(15-冠-5)-邻苯二酰亚胺配体，Ln = La、Pr、Nd 或 Eu。研究了多种因素对反应路径和配合物产率的影响。开发的方案被发现对早期镧系元素亚组普遍适用。合成条件的变化使得能够确定和分离可能的副产品，即异配位的双层结构 [Br4TPP]Ln[(15C5)4Pc]（Ln = Nd、Eu）和三层结构 [Br4TPP]Nd[(15C5)4Pc]Nd[(15C5)4Pc]。对合成的三层结构配合物 NMR 镧系诱导位移 (LIS) 共振的特殊性进行了详细研究。通过对 LIS 的双核分析，展示了所合成配合物在系列内的同构性及与之前合成化合物的同构性。
• Preparation of La2Zr2O7 by Sol-Gel Route
  作者：Hiroyasu Kido、Sridhar Komarneni、Rustum Roy

  DOI：10.1111/j.1151-2916.1991.tb06899.x

  日期：1991.2

  The La2Zr2O7 phase was prepared from metal acetylacetonates by a sol—gel route without any intermediate phase formation. X-ray peaks appeared at a temperature as low as 500°C at the positions expected for La2Zr2O7, although they were broad. The crystal structure of La2Zr2O7 was found to be of the fluorite type below 900°C and of thepyrochlore type above 1000°C. The substitution of a small amount of

  La2Zr2O7 相是由金属乙酰丙酮化物通过溶胶-凝胶途径制备的，没有任何中间相形成。X 射线峰出现在低至 500°C 的温度下，出现在 La2Zr2O7 预期的位置，尽管它们很宽。La2Zr2O7 的晶体结构在 900°C 以下为萤石型，在 1000°C 以上为烧绿石型。用少量Eu取代La，从荧光的角度研究晶体结构，这些结果证实了在900℃以下形成萤石型La2Zr2O7。
• Crown-interlocked lanthanide diphthalocyaninates with switchable panchromatic absorption
  作者：Kirill P. Birin、Anna I. Poddubnaya、Elena V. Isanbaeva、Yulia G. Gorbunova、Aslan Yu. Tsivadze

  DOI：10.1142/s1088424617500353

  日期：2017.4

  New class of clamshell-type lanthanide (Ce(IV), La(III) and Eu(III)) diphthalocyaninates bearing 24-crown-8 linking fragment are synthesized and characterized by means of NMR, UV-vis spectroscopies and MALDI-TOF mass spectrometry. A strong solvatochromism of the complexes, allowing switching the wide-range panchromatic absorption in polar solvents, is demonstrated by means of UV-vis and NMR spectroscopies and attributed to solvent-induced changing of sandwich conformations. The photodegradation of the obtained complexes was also investigated.

  通过核磁共振、紫外-可见光谱和 MALDI-TOF 质谱法，合成并表征了带有 24-Crown-8 连接片段的新型蛤壳型镧系元素（Ce(IV)、La(III) 和 Eu(III)）二酞菁。紫外-可见光谱和核磁共振光谱证明了这些复合物具有很强的溶解变色性，可以在极性溶剂中切换宽范围的全色吸收，这归因于溶剂诱导的三明治构象变化。此外，还研究了所获复合物的光降解问题。