| 27380-11-6

• CAS: 27380-11-6
• 化学式: B₂H₇
• 分子量: 28.6776
• InChiKey: KJYVBJOXKKWOOO-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：
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• 氢受体数：
  None

反应信息

• 作为产物：
  描述：

  dimethyl sulfide borane 、 borohydride 以 gas 为溶剂， 生成 octahydrotriborate(1-) anion 、
  参考文献：
  名称：

  Workman, Derek B.; Squires, Robert R., Inorganic Chemistry, 1988, vol. 27, # 11, p. 1846 - 1848

  摘要：

  DOI：

文献信息

• Reactions of diborane with aromatic heterocycles—21
  作者：Philip C. Keller、Ronald L. Marks、John V. Rund

  DOI：10.1016/s0277-5387(00)81517-x

  日期：1983.1

  The reactions of solutions of B2H6 in ethers with a variety of aromatic heterocycles containing one or more six-membered rings with only one nitrogen per ring have been examined. Quinoline and isoquinoline form monoborane adducts which hydroborate in the presence of an excess of B2H6. Protonolysis gives the 1,2,3,4-tetrahydro-compounds in both cases. N-Methylquinolinium and N-methylisoquinolinium iodides

  已经研究了B 2 H 6在醚中的溶液与各种芳香族杂环的反应，这些芳香族杂环包含一个或多个六元环，每个环仅含一个氮。喹啉和异喹啉形成单硼烷加合物，在过量的B 2 H 6存在下氢硼酸酯化。在两种情况下，质子分解均产生1,2,3,4-四氢化合物。N-甲基喹啉鎓和N碘代甲基异喹啉碘化物均为氢硼酸盐。2-，3-或4-卤代喹啉（氯或溴）会发生硼氢化和卤素损失。在氢硼化之前，8-羟基喹啉形成硼烷加合物，该硼烷加合物在可能的分子内闭环中迅速消除一当量的氢。用乙酸钠8-羟基喹啉联合机2 ħ 6中不对称裂解反应以形成乙2 ħ 7 -或BH 4 - ，以及由8-羟基喹啉所形成的相同的环闭合产物。菲啶和N-甲基菲啶碘化物都容易进行硼氢化。后者与B 2 H 6形成的产物是5-甲基-5，6-二氢菲啶-硼烷和碘硼烷醚化物。1,8-萘啶形成瞬态硼烷络合物，可迅速进行硼氢化反应；质子分解得到1,2,3,4-四氢-1,8-萘啶。2
• Selective Reversible Hydrogenation of Mg(B₃H₈)₂/MgH₂ to Mg(BH₄)₂: Pathway to Reversible Borane-Based Hydrogen Storage?
  作者：Marina Chong、Motoaki Matsuo、Shin-ichi Orimo、Tom Autrey、Craig M. Jensen

  DOI：10.1021/acs.inorgchem.5b00373

  日期：2015.4.20

  Mg(B3H8)(2)center dot 2THF (THF = tetrahydrofuran) was prepared by the addition of BH center dot THF to Mg/Hg amalgam. Heating a 1:2 molar mixture of Mg(B3H8)(2)center dot 2THF and MgH2 to 200 degrees C under 5 MPa H-2 for 2 h leads to nearly quantitative conversion to Mg(BH4)(2). The differential scanning calorimetry profile of the reaction measured under 5 MPa H-2 shows an initial endothermic feature at similar to 65 degrees C for a phase change of the compound followed by a broad exothermic feature that reaches a maximum at 130 degrees C corresponding to the hydrogenation of Mg(B3H8)(2) to Mg(BH4)(2). Heating Mg(B3H8)(2)center dot 2THF to 200 degrees C under 5 MPa H-2 pressure in the absence of MgH2 gives predominantly MgB12H12 as well as significant amounts of MgB10H10 and Mg(BH4)(2). Hydrogenation of a mixture of Mg(B3H8)(2)center dot 2THF and LiH in a 1:4 molar ratio at 130 degrees C under 5 MPa H-2 yields [B12H12](2) in addition to [BH4](-), while a 1:4 molar ratio of Mg(B3H8)(2)center dot 2THF and NaH yields [BH4](-) and a new borane, likely [B2H7](-). Hydrogenation of the NaH-containing mixture at 130 degrees C gives primarily the alternative borane, indicating it is an intermediate in the two-step conversion of the triborane to [BH4](-). The solvent-free triborane Mg(B3H8)(2), derived from the low-temperature dehydrogenation of Mg(BH4)(2), also produces Mg(BH4)(2), but higher temperature and pressure is required to effect the complete transformation of the Mg(B3H8)(2). These results show that the reversible transformation of the triborane depends on the stability of the metal hydride. The more stable the metal hydride, that is, LiH > NaH > MgH2, the lower is the regeneration efficiency.