[Tb(trimethylsilylmethyl)3(thf)2] | 827342-24-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 氧唑烯
• 英文名称: [Tb(trimethylsilylmethyl)3(thf)2]
• 英文别名: Methanidyl(trimethyl)silane;oxolane;terbium(3+)
• CAS: 827342-24-5；67483-82-3
• 化学式: C₂₀H₄₉O₂Si₃Tb
• 分子量: 564.79
• InChiKey: GMTDJHRQIRBETK-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.69
• 重原子数：
  26
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.85
• 拓扑面积：
  18.5
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  三(叔丁氧基)硅烷醇 、 [Tb(trimethylsilylmethyl)3(thf)2] 以 正戊烷 为溶剂， 以81%的产率得到[Tb(μ,η2-tri(tert-butoxy)silanolato)(trimethylsilylmethyl)2]2
  参考文献：
  名称：

  中性和阳离子型稀土金属硅烷醇化物配合物的合成，结构和氢化硅烷化活性

  摘要：

  稀土类金属烷基三（叔丁氧基）硅烷醇盐配合物[LN {μ，η 2 -OSi（O吨丁基）3 }（CH 2森达3）2 ] 2（Ln为Y（1），TB（2）通过在戊烷中用三（叔丁氧基）硅烷醇对适当的三（烷基）络合物[Ln（CH 2 SiMe 3）3（thf）2 ]进行质子分解制备了Lu（3）。晶体结构分析表明，双核结构1在钇中心具有方形金字塔形几何形状。该硅烷醇在配体η坐标2 -bridging协调模式给予4-梯级截断梯子和非晶体学反演中心。两个等值的加法。将12-crown-4分别溶于1或3的戊烷溶液中得到[Ln {OSi（O t Bu）3 }（CH 2 SiMe 3）2（12-crown-4）]·12-crown-4（Ln = Y（4），Lu（5））。5的晶体结构分析显示，the中心的八面体几何形状略有变形。所述硅烷醇盐配体采用的η 1末端协调模式，而在一个不寻常的κ冠醚单元的坐标3 -时尚。的反应1-3与[净3

  DOI：

  10.1039/b512285f
• 作为产物：
  描述：

  四氢呋喃 、 terbium(III) chloride 、 trimethylsilylmethyllithium 反应 0.67h， 以68%的产率得到[Tb(trimethylsilylmethyl)3(thf)2]
  参考文献：
  名称：

  Adducts of Tris(alkyl) Holmium(III) Showing Magnetic Relaxation

  摘要：

  In the series of the adducts of tris(alkyl) Ho" complexes, Ho-III (CH2SiMe3)(3) (THF)(2) (1Ho-THF, Me = methyl) can exhibit slow magnetic relaxation under a zero applied direct current (DC) field with the energy barrier Delta/k(B) of 76 K, which is one of the highest in the non-Kramers ion Ho-III-based single-ion magnets (SIMs). The DC field-dependence of relaxation time for 1Ho-THF indicates the occurrence of direct relaxation process at low temperature under certain DC fields. 1Ho-THF stands out in the series of 1Ln-THF (Ln = Tb, Dy, Ho, Er, Tm), wherein Dy congener is another SIM in the absence of a DC field with the relaxation barrier of 40 K, while Tb and Er congeners are fieldinduced SIMs. Further substitutions of the two trans-THF in 1Ho-THF by other neutral ligands such as quinuclidine, tricyclohexylphosphine oxide, and 3,5-lutidine afforded Ho(CH2SiMe3)(3) (quinuclidine)(2) (2Ho-QN), Ho(CH2SiMe3)(3)(OPCy3)(2) (3Ho-OPCy3), and Ho(CH2SiMe3)(3) (lutidine)(3) (4Ho-Lut), respectively. The former two possess analogous structures to 1Ho-THF with two trans-arranged neutral ligands, and the latter one has three cis-lutidine coordinated. The fast quantum tunneling effect swamps the magnetic relaxation for the above three derivatives, so slow relaxation could not be observed under experimental conditions, even when a certain DC field was applied.

  DOI：

  10.1021/acs.inorgchem.9b03264

文献信息

• Synthesis, structure and hydrosilylation activity of neutral and cationic rare-earth metal silanolate complexes
  作者：Benjamin R. Elvidge、Stefan Arndt、Thomas P. Spaniol、Jun Okuda

  DOI：10.1039/b512285f

  日期：——

  Rare-earth metal alkyl tri(tert-butoxy)silanolate complexes [Lnμ,η2-OSi(OtBu)3}(CH2SiMe3)2]2 (Ln = Y (1), Tb (2), Lu (3)) were prepared via protonolysis of the appropriate tris(alkyl) complex [Ln(CH2SiMe3)3(thf)2] with tri(tert-butoxy)silanol in pentane. Crystal structure analysis revealed a dinuclear structure for 1 with square pyramidal geometry at the yttrium centre. The silanolate ligand coordinates

  稀土类金属烷基三（叔丁氧基）硅烷醇盐配合物[LN μ，η 2 -OSi（O吨丁基）3 }（CH 2森达3）2 ] 2（Ln为Y（1），TB（2）通过在戊烷中用三（叔丁氧基）硅烷醇对适当的三（烷基）络合物[Ln（CH 2 SiMe 3）3（thf）2 ]进行质子分解制备了Lu（3）。晶体结构分析表明，双核结构1在钇中心具有方形金字塔形几何形状。该硅烷醇在配体η坐标2 -bridging协调模式给予4-梯级截断梯子和非晶体学反演中心。两个等值的加法。将12-crown-4分别溶于1或3的戊烷溶液中得到[Ln OSi（O t Bu）3 }（CH 2 SiMe 3）2（12-crown-4）]·12-crown-4（Ln = Y（4），Lu（5））。5的晶体结构分析显示，the中心的八面体几何形状略有变形。所述硅烷醇盐配体采用的η 1末端协调模式，而在一个不寻常的κ冠醚单元的坐标3 -时尚。的反应1-3与[净3
• Adducts of Tris(alkyl) Holmium(III) Showing Magnetic Relaxation
  作者：Shi-Ming Chen、Yi-Quan Zhang、Jin Xiong、Bing-Wu Wang、Song Gao

  DOI：10.1021/acs.inorgchem.9b03264

  日期：2020.5.4

  In the series of the adducts of tris(alkyl) Ho" complexes, Ho-III (CH2SiMe3)(3) (THF)(2) (1Ho-THF, Me = methyl) can exhibit slow magnetic relaxation under a zero applied direct current (DC) field with the energy barrier Delta/k(B) of 76 K, which is one of the highest in the non-Kramers ion Ho-III-based single-ion magnets (SIMs). The DC field-dependence of relaxation time for 1Ho-THF indicates the occurrence of direct relaxation process at low temperature under certain DC fields. 1Ho-THF stands out in the series of 1Ln-THF (Ln = Tb, Dy, Ho, Er, Tm), wherein Dy congener is another SIM in the absence of a DC field with the relaxation barrier of 40 K, while Tb and Er congeners are fieldinduced SIMs. Further substitutions of the two trans-THF in 1Ho-THF by other neutral ligands such as quinuclidine, tricyclohexylphosphine oxide, and 3,5-lutidine afforded Ho(CH2SiMe3)(3) (quinuclidine)(2) (2Ho-QN), Ho(CH2SiMe3)(3)(OPCy3)(2) (3Ho-OPCy3), and Ho(CH2SiMe3)(3) (lutidine)(3) (4Ho-Lut), respectively. The former two possess analogous structures to 1Ho-THF with two trans-arranged neutral ligands, and the latter one has three cis-lutidine coordinated. The fast quantum tunneling effect swamps the magnetic relaxation for the above three derivatives, so slow relaxation could not be observed under experimental conditions, even when a certain DC field was applied.