Sm(BH₄)₃(THF)₃ | 135126-31-7

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: Sm(BH₄)₃(THF)₃
• 英文别名: boranuide;oxolane;samarium(3+)
• CAS: 135126-31-7
• 化学式: C₁₂H₃₆B₃O₃Sm
• 分子量: 411.209
• InChiKey: OBXDWTSEKYBWNB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -1.96
• 重原子数：
  19
• 可旋转键数：
  0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  27.7
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  Sm(BH₄)₃(THF)₃ 、 以 四氢呋喃 为溶剂， 反应 2.0h， 以83%的产率得到Sm(BH₄)₂(C₃H₅)(THF)₃
  参考文献：
  名称：

  混合的烯丙基硼氢化镧镧系元素配合物：Ln（BH4）2（C3H5）（THF）3（Ln = Nd，Sm）的合成，表征和对聚合的反应性

  摘要：

  New mixed allyl-borohydrido lanthanide complexes Ln(BH4)(2)(C3H5)(THF)(3) (Ln = Nd (1), Sm (2)) could be prepared in good yield by reacting Ln(BH4)(3)(THF)(3) (Ln = Sm, Nd) with 1/2 equiv of Mg(C3H5)(2)(THF)(x). X-ray structure analysis revealed monomeric structures with two terminal BH4 ligands, one pi-ally) ligand, and three THF molecules. In an assessment of isoprene polymerization, 1 afforded trans-1,4-polyisoprene in good yield, as a single component or in combination with Mg cocatalyst. Both 1 and 2 were found to be extremely active toward e-caprolactone polymerization.

  DOI：

  10.1021/acs.organomet.5b00877

文献信息

• Cationic rare-earth metal bis(tetrahydridoborato) complexes: direct synthesis, structure and ring-opening polymerisation activity toward cyclic esters
  作者：Dominique Robert、Małgorzata Kondracka、Jun Okuda

  DOI：10.1039/b801030g

  日期：——

  Rare-earth metal tris(borohydrides) [Ln(BH4)3(thf)3] (Ln = Y, La, Nd, Sm) are converted with one equivalent of the Brønsted acid [NEt3H]+[BPh4]− in thf into the monocationic bis(borohydride) complexes [Ln(BH4)2(thf)5]+[BPh4]−. They efficiently initiate the ring-opening polymerisation of ε-caprolactone.

  稀土金属三（硼氢化物）[Ln(BH4)3(thf)3]（Ln = Y、La、Nd、Sm）与thf中的一种等效布氏酸[NEt3H]+[BPh4]-一起转化为单位双（硼氢化物）配合物[Ln( )2(thf)5]+[BPh4]-。它们能有效地引发ε-己内酯的开环聚合反应。