aluminum monohydride | 13967-22-1

• 分子结构分类: 无机化合物 - 混合金属/非金属化合物 - 后过渡金属有机物
• 英文名称: aluminum monohydride
• 英文别名: aluminum hydride；Hydridoaluminium；λ1-alumane
• CAS: 13967-22-1
• 化学式: AlH
• 分子量: 27.9895
• InChiKey: SPRIOUNJHPCKPV-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.65
• 重原子数：
  1
• 可旋转键数：
  0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为产物：
  描述：

  氢气 、 氢化铝 以 neat (no solvent) 为溶剂， 生成 aluminum monohydride
  参考文献：
  名称：

  Laser spectroscopy in a pulsed jet of AlH: Ionization‐detected ultraviolet absorption spectra of the transitions C ¹Σ⁺–X ¹Σ⁺ and b ³Σ⁻–X ¹Σ⁺

  摘要：

  We report the production of radical transients AlH and AlD in a filament-source pulsed free-jet expansion. In this source, hydrogen gas from a pulsed valve passes over hot tungsten filament wrapped by a layer of aluminum wire. Liquid aluminum wetting the filament reacts rapidly to form (AlH3)x oligomer. Depending on filament temperature, either AlH or AlH2 sublimes from this oligomeric coating to be entrained in subsequent pulses of H2. The source has been characterized by laser induced fluorescence and ionization-detected one-photon absorption with time-of-flight mass resolution. Laser-induced fluorescence measurements focus on the well-known A–X transition of AlH. Higher energy ionization-detected absorption spectra resolve the C 1Σ+–X 1Σ+ transition in AlH and AlD, and for the first time the forbidden transition, b 3Σ−–X 1Σ+, in AlH. Spectroscopic constants determined from an analysis of bands assigned to v=0 and v=1 of the b 3Σ− state are Te = 40 524 cm−1, Be = 7.0675 cm−1, De = 6.1 × 10−5 cm−1, αe = 0.637 cm−1, βe = 6.38× 10−4, and γe = 1.5725, with v=0 spin–orbit and spin–rotation coupling parameters λ0=0.29 cm−1, and γ0=0.03 cm−1, inducing structure in a transition that appears to be predominantly parallel. For v=1, spin–orbit coupling is much stronger, and rotational branch intensities suggest interference, indicating that both parallel and perpendicular components of the transition moment contribute to the total oscillator strength. Results for the C–X (0–0) transitions give B0 = 6.3869 cm−1 and D0 = 5.329 × 10−4 with T0 = 44 594.05 cm−1 for the AlH C state, and B0 = 3.3457 cm−1 and D0 = 1.380× 10−4 cm−1 with T0 = 44 631.09 cm−1 for the AlD C state.

  DOI：

  10.1063/1.463192

文献信息

• High resolution infrared emission spectra of AlH and AlD
  作者：J. B. White、M. Dulick、P. F. Bernath

  DOI：10.1063/1.465612

  日期：1993.12

  High resolution infrared emission spectra of aluminum monohydride and monodeuteride have been recorded. Gaseous AlH and AlD were generated by reacting molten aluminum metal with hydrogen and deuterium gas. Approximately 265 AlH lines with v=1→0 to v=5→4 and 470 AlD lines with v=1→0 to v=7→6 are reported. Dunham Yij constants were obtained by fitting the data of each isotopomer separately to the Dunham energy level expression while mass-reduced Dunham Uij constants were obtained from a combined fit of all isotopomer data. A second set of Dunham Uij constants was obtained from a fit where Uij’s with j<2 were treated as adjustable parameters and all remaining Uij’s fixed to values that satisfy the constraints imposed by the Dunham model. Finally, an effective Born–Oppenheimer potential was determined by fitting all the data directly to the eigenvalues of the radial Schrödinger equation containing a parametrized potential function.
• Laser spectroscopy in a pulsed jet of AlH: Ionization‐detected ultraviolet absorption spectra of the transitions <i>C</i> ¹Σ⁺–<i>X</i> ¹Σ⁺ and <i>b</i> ³Σ⁻–<i>X</i> ¹Σ⁺
  作者：Yi Fei Zhu、Rana Shehadeh、Edward R. Grant

  DOI：10.1063/1.463192

  日期：1992.7.15

  We report the production of radical transients AlH and AlD in a filament-source pulsed free-jet expansion. In this source, hydrogen gas from a pulsed valve passes over hot tungsten filament wrapped by a layer of aluminum wire. Liquid aluminum wetting the filament reacts rapidly to form (AlH3)x oligomer. Depending on filament temperature, either AlH or AlH2 sublimes from this oligomeric coating to be entrained in subsequent pulses of H2. The source has been characterized by laser induced fluorescence and ionization-detected one-photon absorption with time-of-flight mass resolution. Laser-induced fluorescence measurements focus on the well-known A–X transition of AlH. Higher energy ionization-detected absorption spectra resolve the C 1Σ+–X 1Σ+ transition in AlH and AlD, and for the first time the forbidden transition, b 3Σ−–X 1Σ+, in AlH. Spectroscopic constants determined from an analysis of bands assigned to v=0 and v=1 of the b 3Σ− state are Te = 40 524 cm−1, Be = 7.0675 cm−1, De = 6.1 × 10−5 cm−1, αe = 0.637 cm−1, βe = 6.38× 10−4, and γe = 1.5725, with v=0 spin–orbit and spin–rotation coupling parameters λ0=0.29 cm−1, and γ0=0.03 cm−1, inducing structure in a transition that appears to be predominantly parallel. For v=1, spin–orbit coupling is much stronger, and rotational branch intensities suggest interference, indicating that both parallel and perpendicular components of the transition moment contribute to the total oscillator strength. Results for the C–X (0–0) transitions give B0 = 6.3869 cm−1 and D0 = 5.329 × 10−4 with T0 = 44 594.05 cm−1 for the AlH C state, and B0 = 3.3457 cm−1 and D0 = 1.380× 10−4 cm−1 with T0 = 44 631.09 cm−1 for the AlD C state.