(η**(5)-C5Me4H)3Y | 1234504-08-5

• 英文名称: (η**(5)-C5Me4H)3Y
• 英文别名: (η⁵-C₅Me₄H)₃Y；(C₅Me₄H)₃Y；Cp^tet₃Y；(C5Me4H)3Y
• CAS: 1234504-08-5
• 化学式: C₂₇H₃₉Y
• 分子量: 452.513
• InChiKey: GOHDMOOJAIRGKX-UHFFFAOYSA-N

计算性质

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

反应信息

• 作为反应物：
  描述：

  四氢呋喃 、 (η**(5)-C5Me4H)3Y 、 tris(2-tert-butylnitroxyl)benzylamine 反应 0.08h， 生成
  参考文献：
  名称：

  Redox-Driven Chelation and Kinetic Separation of Select Rare Earths Using a Tripodal Nitroxide Proligand

  摘要：

  Separation of the rare-earth (RE) elements (Sc, Y, La-Lu) is challenging because of their similar chemical properties, but is necessary for their applications in renewable energy and electronic device technologies. The development of separation processes driven by kinetic factors represents a new area for this field. Herein, we disclose a novel method of separating select rare earths by reacting RE cyclopentadienides with the triradical species tris(2-tert-butylnitroxyl)benzylamine (1). The key proligand 1 was characterized using a variety of techniques including X-ray crystallography, magnetometry, and EPR spectroscopy. When applied to an equimolar mixture of La:Y cyclopentadienide complexes, different rates of chelation of these organometallic precursors by 1 were observed, affording a separation factor of 26 under the reported conditions.

  DOI：

  10.1021/acs.inorgchem.9b00975
• 作为产物：
  描述：

  (η**(5)-C5Me4H)2Y(μ-Ph)BPh3) 、 potassium tetramethylcyclopentadienide 以 苯 为溶剂， 以71%的产率得到(η**(5)-C5Me4H)3Y
  参考文献：
  名称：

  三（聚烷基环戊二烯基）配合物：难以捉摸的[（η5-C5R5）2M（η1-C5R5）]结构和涉及甲基取代基的三肽环戊二烯基配位

  摘要：

  经典惊讶：所述（C探索5我4 1H）-钪，Y的化学，和Lu的金属茂已导致之二的第一个例子（η 5）（η 1） -三（polyalkylcyclopentadienyl）络合物和新的三聚烷基环戊二烯基配体的原子配位模式（参见方案）。

  DOI：

  10.1002/anie.201005898

文献信息

• Tetramethylcyclopentadienyl Ligands Allow Isolation of Ln(II) Ions across the Lanthanide Series in [K(2.2.2-cryptand)][(C₅Me₄H)₃Ln] Complexes
  作者：Tener F. Jenkins、David H. Woen、Luke N. Mohanam、Joseph W. Ziller、Filipp Furche、William J. Evans

  DOI：10.1021/acs.organomet.8b00557

  日期：2018.11.12

  complexes, [K(crypt)][Cptet3Ln] for Ln = La, Ce, Pr, Nd, Sm, Gd, Tb, and Dy, all of which were characterized by X-ray crystallography. These complexes display intense absorptions in the UV–visible–near IR region that are red-shifted compared to those of previously characterized (Cp′3Ln)1– complexes (Cp′ = C5H4SiMe3). The thermal stability of these new Ln(II) complexes decreases with the size of the metal

  尽管以前对整个镧系的Ln（II）离子稳定化的研究都依赖于Me 3 Si取代的环戊二烯基配体，但现在我们惊讶地发现这些离子也可以被三个四甲基环戊二烯基配体包围而存在。在2.2.2-cryptand（隐窝）存在下，使用钾石墨还原4f n Ln（III）络合物CP tet 3 Ln（CP tet = C 5 Me 4 H）产生Ln（II）络合物，[K （crypt）] [CP tet 3对于Ln ＝ La，Ce，Pr，Nd，Sm，Gd，Tb和Dy，Ln]均通过X射线晶体学表征。这些配合物显示的紫外可见近红外区吸收强烈红移相比，这些先前表征的（CP'是3，LN）1-复合物（CP'= C 5 H ^ 4森达3）。这些新的Ln（II）配合物的热稳定性会随着金属尺寸的增加而降低。
• Synthesis and Reactivity of Bis(tetramethylcyclopentadienyl) Yttrium Metallocenes Including the Reduction of Me₃SiN₃ to [(Me₃Si)₂N]⁻ with [(C₅Me₄H)₂Y(THF)]₂(μ-η²:η²-N₂)
  作者：Sara E. Lorenz、Benjamin M. Schmiege、David S. Lee、Joseph W. Ziller、William J. Evans

  DOI：10.1021/ic100682d

  日期：2010.7.19

  The metallocene precursors needed to provide the tetramethylcyclopentadienyl yttrium complexes (C5Me4H)(3)Y, [(C5Me4H)(2)Y(THF)](2)(mu-eta(2):eta(2)-N-2), and [(C5Me4H)(2)Y(mu-H)](2) for reactivity studies have been synthesized and fully characterized, and their reaction chemistry has led to an unexpected conversion of an azide to an amide. (C5Me4H)(2)Y-(mu-Cl)(2)K(THF)(x), 1, synthesized from YCl3 and KC5Me4H reacts with allylmagnesium chloride to make (C5Me4H)(2)Y-(eta(3)-C3H5), 2, which is converted to [(C5Me4H)(2)Y][(mu-Ph)(2)BPh2], 3, with [Et3NH][BPh4]. Complex 3 reacts with KC5Me4H to form (C5Me4H)(3)Y, 4. The reduced dinitrogen complex, [(C5Me4H)(2)Y(THF)](2)(mu-eta(2):eta(2)-N-2), 5, can be synthesized from either [(C5Me4H)(2)Y](2)[(mu-Ph)(2)BPh2], 3, or (C5Me4H)(3)Y, 4, with potassium graphite under a dinitrogen atmosphere. The N-15 labeled analogue, [(C5Me4H)(2)Y(THF)](2)(mu-eta(2):eta(2)-N-15(2)), 5-N-15, has also been prepared, and the N-15 NMR data have been compared to previously characterized reduced dinitrogen complexes. Complex 2 reacts with H-2 to form the corresponding hydride, [(C5Me4H)(2)Y(mu-H)](2), 6. Complex 5 displays similar reactivity to that of the analogous [(C5Me4H)(2)Ln(THF)](2)(mu-eta(2):eta(2)-N-2) complexes (Ln = La, Lu), with substrates such as phenazine, anthracene, and CO2. In addition, 5 reduces Me3SiN3 to form (C5Me4H)(2)Y[N(SiMe3)(2)], 7.