HoCl3(THF)3 | 338392-77-1

• 英文名称: HoCl3(THF)3
• CAS: 338392-77-1
• 化学式: C₁₂H₂₄Cl₃HoO₃
• 分子量: 487.61
• InChiKey: BLQOWNXSPMUXFE-UHFFFAOYSA-K

反应信息

• 作为反应物：
  描述：

  HoCl3(THF)3 、 potassium 2,4-di-tert-butylpentadienide 以 四氢呋喃 为溶剂， 反应 3.5h， 以52%的产率得到[(2,4-(Me₃C)₂C₅H₅)(2,4-(Me₃C)₂C₅H₅−1H)(2,4-(Me₃C)₂C₅H₅−2H)Ho₂(thf)₂]
  参考文献：
  名称：

  合成和稀土类金属的戊二烯基配合物的分子结构†往最‡

  摘要：

  系统地研究了空间受限的戊二烯基配体pdl'（pdl'= 2,4-（Me 3 C）2 C 5 H 5）对一系列稀土金属的配位化学，并对得到的金属配合物进行了全面表征几种技术包括X射线衍射，元素分析，NMR光谱和固态磁化率研究。根据金属原子的氧化还原电位和离子半径，分离出三种不同的反应产物。它们可分为（a）盐复分解，（b）金属还原-配体氧化和（c）配体去质子化产物。而对于较大的和难以降低金属离子，M =镧，铈，Pr和Nd，三价化合物[（η 5-PdL'）3 M]（1-M ）中分离，对于更容易被还原的金属离子的相应的二价化合物[[（η 5 -PdL'）2 M（THF）Ñ ]（2-M ;其中M =形成Sm（n = 2）; Eu，Yb（n = 1））。对于较小且也难以还原的金属离子，观察到更复杂的结构基序，M = Sc，Y，Gd，Tb，Dy，Ho，Er，Tm和Lu，产生了[[pdl' ）（pdl'-

  DOI：

  10.1039/c8dt03123a

文献信息

• Enantiomerically Pure Constrained Geometry Complexes of the Rare‐Earth Metals Featuring a Dianionic N‐Donor Functionalised Pentadienyl Ligand: Synthesis and Characterisation
  作者：Katharina Münster、Ann Christin Fecker、Jan Raeder、Matthias Freytag、Peter G. Jones、Marc D. Walter

  DOI：10.1002/chem.202003170

  日期：2020.12.4

  report the preparation of enantiomerically pure constrained geometry complexes (cgc) of the rare‐earth metals bearing a pentadienyl moiety (pdl) derived from the natural product (1R)‐(−)‐myrtenal. The potassium salt 1, [Kpdl*], was treated with ClSiMe2NHtBu, and the resulting pentadiene 2 was deprotonated with the Schlosser‐type base KOtPen/nBuLi (tPen=CMe2(CH2Me)) to yield the dipotassium salt [K2(pdl*SiMe2NtBu)]

  我们报告了稀土金属的对映体纯约束几何配合物（cgc）的制备，该稀土金属带有衍生自天然产物（1 R）-（-）-myrtenal的戊二烯基部分（pdl）。钾盐1，[KPDL *]，用ClSiMe处理2 NH吨卜，将得到的戊二烯2是与去质子化施罗瑟型基极KO吨青霉素/ Ñ丁基锂（吨笔= CME 2（CH 2 Me）的）产生双钾盐[K 2（pdl * SiMe 2 N t Bu）]（3）。然而，3重排的THF溶液至其异构体3'由1,3--H移位，其拉长PDL和森达之间的桥2 Ñ吨由一个CH卜部分2单元。这对于成功形成具有附加卤化物，四硼氢化物，酰胺基和烷基官能团的各种单体C 1或二聚C 2对称稀土cgc配合物至关重要。所有化合物均已通过固态X射线衍射分析，溶液NMR光谱和元素分析进行​​了广泛表征。
• Bis(oxazolinyl)phenyl-Ligated Rare-Earth-Metal Complexes: Highly Regioselective Catalysts for <i>cis</i>-1,4-Polymerization of Isoprene
  作者：Yu Pan、Tieqi Xu、Guan-Wen Yang、Kun Jin、Xiao-Bing Lu

  DOI：10.1021/ic300976p

  日期：2013.3.18

  NCN-pincer (S,S)-2,6-bis(4'-isopropyl-2'-oxazolinyl)phenyl-ligated rare-earth-metal dichlorides [(S,S)-Phebox-Pr-i]LnCl(2)(THF)(2) (Ln = Sc (1); Y (2); Dy (3); Ho (4); Tm (5); Lu (6)) were synthesized via transmetalation between [(S,S)-Phebox-Pr-i]Li and LnCl(3) in THF solvent. Interestingly, treatment of LaCl3 by the same method generated tris(ligand) lanthanum complex [(S,S)-Phebox-Pr-i](3)La (7). Molecular structures of complexes 1, 2, 3, and 7 were established by single-crystal X-ray diffraction study. Pincer ligand (S,S)-Phebox-Pr-i adopts a kappa C:kappa N:kappa N' tridentate coordination mode to the central metal ion. Upon activation with [PhNHMe2][B(C6F5)(4)] and (AlBu3)-Bu-i, complexes 2-5 exhibited highly catalytic activities and more than 98% cis-1,4-selectivity for isoprene polymerization while complexes 1 and 6 were inactive for this reaction. When use of the catalyst system consisted of complex 2, [PhNHMe2][B(C6F5)(4)], and (AlBu3)-Bu-i for isoprene polymerization, the resultant polymer has a high cis-1,4-selectivity up to 99.5%. The reaction temperature had little effect on the regioselectivity, and high cis-1,4-selectivity almost remained even at 80 degrees C.