magnesium dihydride | 60688-56-4

• 分子结构分类: 无机化合物 - 均质非金属化合物 - 均质其他非金属化合物
• 英文名称: magnesium dihydride
• CAS: 60688-56-4
• 化学式: H₂Mg
• 分子量: 28.305
• InChiKey: RSHAOIXHUHAZPM-IMSGLENWSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.92
• 重原子数：
  1.0
• 可旋转键数：
  0.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  0.0
• 氢给体数：
  0.0
• 氢受体数：
  0.0

反应信息

• 作为反应物：
  描述：

  magnesium dihydride 、 氨-d3 以 neat (no solvent, solid phase) 为溶剂， 生成 magnesium amide
  参考文献：
  名称：

  Magnesium Imide: Synthesis and Structure Determination of an Unconventional Alkaline Earth Imide from Decomposition of Magnesium Amide

  摘要：

  Magnesium imide (MgNH) was produced by monitoring the decomposition process of magnesium amide with in situ neutron diffraction. Significant changes in the structure of magnesium amide are detected during heat treatment and eventually result in the formation of crystalline MgNH. A model for the crystal structure of magnesium imide (MgNH) is presented for the first time. Remarkably, magnesium imide offers unique structural features similar to the cyclosilicate class and can be described as a porous solid formed by a sequence of linked chains of face sharing Mg(6)N(6) hexagonal prism clusters.

  DOI：

  10.1021/ic1023778
• 作为产物：
  描述：

  magnesium 、 氘 以 gas 为溶剂， 生成 magnesium dihydride
  参考文献：
  名称：

  游离MgD2的反对称伸缩基带

  摘要：

  气态 MgD2 分子首次在高温炉内放电合成。用傅里叶变换光谱仪记录了MgD2的高分辨率红外发射光谱，在1176.5 cm??1附近检测到反对称伸缩模式(v3)。对v3能带进行旋转分析，确定r0 Mg??D键距为1.700 874(8) A。关键词：气态MgD2，振动-旋转发射光谱，Mg-D键距。

  DOI：

  10.1139/v04-043

文献信息

• Reaction of magnesium hydride with pyridine: Formation of H3Mg2NC5H6, HMgNC5H6 and Mg(NC5H6)2
  作者：E.C. Ashby、A.B. Goel

  DOI：10.1016/s0022-328x(00)84579-9

  日期：1981.1

  The reaction of magnesium hydride with excess pyridine at room temperature results in the formation of soluble bis(N-dihydropyridyl)magnesium which is shown by NMR spectra, to contain 1,2- and 1,4-dihydropyridine groups bound to magnesium. A similar reaction carried out at 60° C has been shown to form bis(N-diihydropyridyl)magnesium containing only 1,4-dihydropyridine groups. Formation of H3Mg2(NC5H6)

  氢化镁与过量吡啶在室温下的反应导致形成可溶性双（N-二氢吡啶基）镁，其通过NMR光谱显示，其包含结合至镁的1,2-和1,4-二氢吡啶基。已显示在60℃下进行的类似反应形成仅包含1，4-二氢吡啶基的双（N-二氢吡啶基）镁。在吡啶与氢化镁的受控反应中还报道了H 3 Mg 2（NC 5 H 6）和HMg（NC 5 H 6）的形成。
• Photochemical synthesis of magnesium dihydride and methyl magnesium hydride in cryogenic matrixes
  作者：John G. McCaffrey、J. Mark Parnis、Geoffrey A. Ozin、W. H. Breckenridge

  DOI：10.1021/j100269a012

  日期：1985.11
• Synthesis and structure of an orthorhombic low-pressure polymorph of caesium magnesium hydride, CsMgH3
  作者：G Renaudin、B Bertheville、K Yvon

  DOI：10.1016/s0925-8388(02)01314-2

  日期：2003.4

  CsMgH3 was synthesized by heating mixtures of the binary hydrides in an autoclave at 600 K and a hydrogen pressure of 150 bars. Synchrotron X-ray and neutron powder diffraction reveals a new structure having orthorhombic symmetry (space group Pmmn, a = 9.9958(1), b = 6.13271(6), c = 8.57364(9) Angstrom for the hydride). In contrast to the trigonal high-pressure polymorph, magnesium centred [MgH6] octahedrons are condensed into triangular rather than linear [3MgH(3)](3-) trimers, and these trimers are connected via four corners to two-dimensional slabs rather than via six corners to a three-dimensional network. The Mg-D distances in the deuteride range from 1.94 to 1.96 Angstrom at the periphery to 2.00-2.08 Angstrom at the centre of the trimers. The Mg displacements within the octahedrons suggest repulsive Mg2+-Mg2+ interactions. (C) 2002 Elsevier Science B.V. All rights reserved.