samarium trifluoromethanesulfonate | 2263-49-2

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: samarium trifluoromethanesulfonate
• 英文别名: samarium(III) trifluoroacetate；samarium trifluoroacetate；Sm trifluoroacetate；Sm(OTf)3；trifluoro-acetic acid ; samarium(III)-trifluoroacetate；Sm(TFA)3
• CAS: 2263-49-2
• 化学式: 3C₂F₃O₂*Sm
• 分子量: 489.408
• InChiKey: GMDRNQBECUREOJ-UHFFFAOYSA-M

计算性质

• 辛醇/水分配系数(LogP)：
  -0.7
• 重原子数：
  8.0
• 可旋转键数：
  0.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  40.13
• 氢给体数：
  0.0
• 氢受体数：
  2.0

反应信息

• 作为反应物：
  描述：

  sodium 2,2,2-trifluoroacetate 、 samarium trifluoromethanesulfonate 以 further solvent(s) 为溶剂， 以60%的产率得到
  参考文献：
  名称：

  高质量钠稀土氟化物纳米晶体：可控合成和光学特性

  摘要：

  我们报告了高质量立方（α 相）和六方（β 相）NaREF4（RE：Pr 到 Lu，Y）纳米晶体（纳米多面体、纳米棒、纳米板和纳米球）和 NaYF(4):Yb 的一般合成, Er/Tm 纳米晶体（纳米多面体和纳米片）通过 Na(CF3COO) 和 RE(CF3COO)3 在油酸/油胺/1-十八碳烯中的共热分解。通过调整 Na/RE 的比例、溶剂组成、反应温度和时间，我们可以控制纳米晶体的相、形状和尺寸。根据其α->β相变行为，沿稀土系列，NaREF4可分为三组（I：Pr和Nd；II：Sm到Tb；III：Dy到Lu，Y）。整个可控合成机制可以从自由能的角度来解释。

  DOI：

  10.1021/ja060212h
• 作为产物：
  描述：

  samarium(III) oxide 、 三氟乙酸 以 水 为溶剂， 生成 samarium trifluoromethanesulfonate
  参考文献：
  名称：

  水分散性无配体的稀土氟化物纳米粒子：水转移与NaREF4-to-REF3相变。

  摘要：

  含油酸酯封端的10 nm以下α-和β-NaREF4NPs的化学稳定性（RE = Y，Pr，Nd，Sm，Eu，Gd，Tb，Dy，Ho，Er，Yb，Lu对于α-和RE = β-相NPs的Pr，Nd，Sm，Eu，Gd，Tb，Dy在酸性条件下进行评估，该酸性条件用于去除配体以实现水分散性。已经发现，对于如此小的NP，为了使水转移有效并且产生良好分散的无配体的NP，pH必须低于3。与通常认为的NaREF4的良好化学稳定性形成鲜明对比的是，观察到这些条件可能会导致NaREF4 NP相转变为更大的六方或正交相REF3的风险，具体取决于NP的组成。发现α/β-NaREF4和六方/斜方REF3相的热力学稳定性（由RE离子选择决定）与NPs的化学稳定性之间存在相关性。例如，β-NaGdF4NPs保持稳定，而α-NaGdF4NPs相转变成六方GdF3。更一般而言，基于较轻RE离子的NaREF4 NP更倾向于相变，而基于较重RE离子的NaREF4

  DOI：

  10.1039/d0dt01080d
• 作为试剂：
  描述：

  吲哚 、 反式硝基苯乙烯 在 (S)-10,10'-bis[(S)-4-isopropyl-4,5-dihydrooxazol-2-yl]-9,9'-biphenanthrene 、 samarium trifluoromethanesulfonate 作用下， 以 氯仿 为溶剂， 反应 18.25h， 以99%的产率得到3-(2-硝基-1-苯乙基)-1H-吲哚
  参考文献：
  名称：

  9,9'-联菲-10,10'-双（恶唑啉）的合成及其在吲哚与硝基烯烃的弗里德-克来夫茨烷基化反应中的初步评价

  摘要：

  首先制备了手性9,9'-联菲基-10,10'-双（恶唑啉）s 6a – d。这些新的手性化合物被评估为吲哚与硝基烯烃的Friedel-Crafts烷基化反应的配体，获得了优异的收率和中等至良好的对映选择性。

  DOI：

  10.1016/j.tet.2008.11.083

文献信息

• Optically active uniform potassium and lithium rare earth fluoride nanocrystals derived from metal trifluroacetate precursors
  作者：Ya-Ping Du、Ya-Wen Zhang、Ling-Dong Sun、Chun-Hua Yan

  DOI：10.1039/b909145a

  日期：——

  reaction temperature and time on the crystal phase purity, shape, and size of the as-prepared nanocrystals have been investigated in detail. The formation of monodisperse nanocrystals is found to strongly depend upon the nature of both alkali metals from Li to K, and the rare earth series from La to Lu and Y. Based on the series of experimental results, a controlled-growth mechanism has also been proposed

  本文报道了具有不同形状（立方KLaF4和KCeF4蠕虫状纳米线，纳米立方体和纳米多面体;立方LiREF4（RE = Pr to Gd，Y）纳米多面体;通过在热油酸/油胺/ 1-中共同加热Li（CF3COO）或K（CF3COO）和RE（CF3COO）3共同热解四方LiREF4（RE = Tb对应Lu，Y）菱形纳米板）十八碳烯溶液。已经详细研究了溶剂组成，反应温度和时间对制备的纳米晶体的晶相纯度，形状和尺寸的影响。发现单分散纳米晶体的形成在很大程度上取决于从Li到K的碱金属以及从La到Lu和Y的稀土系列的性质。基于一系列的实验结果，还提出了一种受控增长机制。另外，评估了为设计的发光特性掺杂这些刚合成的主体纳米晶体的难易程度。例如，单分散和单晶掺杂Eu3 +的KGdF4，Yb3 +和Er3 +共掺杂的LiYF4纳米晶体重新分散在环己烷中，在紫外（UV）激发和近红外（NIR）980 nm激光激发下分别显示可见的室温红色和绿色发射。
• Spectral intensity analysis of the S3+-POCl3-ZrCl4 system
  作者：K. Bukietyńska、B. Radomska

  DOI：10.1016/s0277-5387(00)84389-2

  日期：1983.1
• Gmelin Handbuch der Anorganischen Chemie, Gmelin Handbook: Sc: MVol.D5, 1.3.2.1, page 56 - 61
  作者：

  DOI：——

  日期：——
• Introduction of pinning center to enhance Ic under magnetic fields in REBCO coated conductors fabricated by advanced TFA-MOD process
  作者：M. Miura、M. Yoshizumi、Y. Sutoh、K. Nakaoka、S. Miyata、Y. Yamada、T. Izumi、Y. Shiohara、T. Goto、A. Yoshinaka、A. Yajima

  DOI：10.1016/j.physc.2008.05.160

  日期：2008.9

  We prepared REBa2Cu3Oy (REBCO) coated conductors (CCs) with high I-c values from the Ba-poor (Ba/Y < 2) solution compared with conventional CCs with the Y:Ba:Cu = 1:2:3 stoichiometric composition, In this study, we fabricated Y1-xSmxBa1.5Cu3Oy (YSmBCO) CCs under different experimental conditions of the maximum heating temperature and the oxygen partial pressure, in order to investigate the influence of fabrication conditions on microstructures and superconducting properties of the films for high I-c under magnetic fields. The YSmBCO film fabricated from the optimized condition showed high I-c especially at the high magnetic fields compared with the Sm-free YBCO films. The magnitude of the pinning force (F-p) of the optimized YSmBCO film increased under the high magnetic fields and the maximum F-p (F-p.max) value shifted to higher fields compared with those of Sm-free YBCO films. These results suggest that pinning centers were successfully introduced by the optimized fabrication conditions and the chemical substitution of Sm into the Y site enhanced F-p under the high magnetic fields in the YSmBCO coated conductors. (C) 2008 Elsevier B.V. All rights reserved.
• Effect of fabrication conditions on crystalline of SmBCO films fabricated by TFA-MOD method
  作者：A. Mitani、R. Teranishi、K. Yamada、N. Mori、M. Mukaida、T. Kiss、M. Inoue、Y. Shiohara、T. Izumi、K. Nakaoka、J. Matsuda

  DOI：10.1016/j.physc.2008.05.066

  日期：2008.9

  Metal organic deposition using trifluoroacetates is expected as a method for YBCO coated conductors since this method can provide high Superconducting properties and is a cost-effective process with non-vacuum system. Recently, REBCO coated conductors, which has high critical properties. have attracted considerable attention. However. there are some problems to optimize fabrication conditions of REBCO films with this method. In this study, we fabricated SmBCO films by TFA-MOD method and investigated the effect of fabrication conditions on crystalline. We focused especially on a starting temperature (T-1) of inlet moisture in calcination step and 02 gas concentration in crystallization step. Flat surfaces were obtained for the calcined films at both T-1 = 300 degrees C and 350 degrees C compared with that at 200 degrees C. One possible reason for this worse morphology at T-1 = 200 degrees C might be a length of a reaction time between moisture and coated film. When moisture is supplied from low temperature for long time, water could react easily to the fluoride which is contained a lot in the coated film; as a result, more HF gas is generated from the film. The crystalline was also improved for the SmBCO films calcined at over T-1 = 300 degrees C, Furthermore, the film calcined at T-1 = 350 degrees C was crystallized under the condition that O-2 gas concentration was varied between 0.2 ppm and 1000 ppm. The degree of c-axis orientation depends on oxygen partial pressure and the highest c-axis oriented SmBCO film was obtained in the case of 10 ppm. (c) 2008 Elsevier B.V. All rights reserved.