tetraphosphanylgermane | 214424-23-4

• 分子结构分类: 无机化合物
• 英文名称: tetraphosphanylgermane
• 英文别名: Tetraphosphanylgerman
• CAS: 214424-23-4
• 化学式: GeH₈P₄
• 分子量: 204.549
• InChiKey: OJHBDUVWRGIKGF-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.92
• 重原子数：
  5.0
• 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

• 作为产物：
  描述：

  diisobutyl(phosphanyl)alane 、 四氯化锗 在 C₄H₈O 作用下， 以 正己烷 为溶剂， 以2%的产率得到tetraphosphanylgermane
  参考文献：
  名称：

  二异丁基（磷酰基）铝烷：一种简单的 PH2 转移试剂，用于合成硅和锗的多磷酰化化合物

  摘要：

  通过将PH 3 引入到二异丁基氢化铝的己烷溶液中，形成标题化合物[iBu 2 AlPH 2 ] 3 (4)，同时形成H 2 。在碳氢化合物等非配位溶剂中，丙氨酸 4 可能是三聚体结构，在此类溶液中仅显示出轻微的解离趋势。PH2 基团从 4 的亲核转移到第 14 组的 E – X 化合物（E = Si、Ge；X = Cl）仅在 THF 存在下成功，从而将 4 转化为共溶解单体、THF 溶剂化艾伦 5。后者是一种非常温和的磷酰化试剂，可更有效地获取 Si (PH2) 4 (1)、Ge (PH2) 4 (2)、MeSi (PH2) 3 (6) 和 EtSi (PH2) 3 (7) . 二异丁基（膦酰基）丙烷：用于合成硅和锗的聚磷酰化合物的简单 PH2 转移试剂将 PH3 引入到二异丁基氢化铝的己烷溶液中，在放出 H2 的条件下，提供标题化合物 [iBu2AlPH2] 3 (4)。铝烷 4 可能是

  DOI：

  10.1002/(sici)1521-3749(200005)626:5<1091::aid-zaac1091>3.0.co;2-a

文献信息

• Synthesis and Crystal Structure Analysis of Tetraphosphanylsilane and Identification of Tetraphosphanylgermane
  作者：Matthias Driess、Christian Monsé、Roland Boese、Dieter Bläser

  DOI：10.1002/(sici)1521-3773(19980904)37:16<2257::aid-anie2257>3.0.co;2-5

  日期：1998.9.4

  Inversion-symmetric pairs, each with two weak P-H⋅⋅⋅P interactions, form molecules of Si(PH2 )4 in the crystal (see drawing). The title compounds are formed from ECl4 (E=Si,Ge) on reaction with [LiAl(PH2 )4 ] and could serve as single-source CVD precursors for phosphides.
• Tetraphosphanylsilane - A Mild PH2-Transfer Reagent and Building Block for the Synthesis of a Rhombododecahedral Li6P6Si2-Cluster Framework
  作者：M. Driess、C. Monsé、K. Merz

  DOI：10.1002/1521-3749(200106)627:6<1225::aid-zaac1225>3.0.co;2-l

  日期：2001.6

  Reaction of the PH2-transfer reagent Si(PH2)(4) (1) with SiCl4 affords a mixture of the ClnSi(PH2)(4-n) compounds (2a, n = 1), (2b, n = 2), and (2c, n = 3) which were characterized by H-1-P-31-COSY NMR spectroscopy. The formation of (2a) is drastically accelerated by using GeCl4 instead of SiCl4 as PH2 acceptor, but a stable molecular GeCl4-n(PH2)(n) containing product could not be obtained. In contrast, conversion of (C6F5)(3)GeCl With Si(PH2)(4) (1) furnishes 2a but also the remarkably stable tris(pentafluorophenyl)phosphaneylgermane (3). The latter is isolated in the form of colorless crystals in 97% yield and represents the first PH2-substituted germane being structurally characterized by single-crystal X-ray diffraction. Protolysis of 1 with MeOH and PhOH occurs relatively fast and leads to mixtures of compounds of the type (RO)(n)Si(PH2)(4-n) (4, n = 1), (5, n = 2), and (6, n = 3). The sterically congested phenols MesOH and 3,5-Me2PhOH react with 1 only to the respective mono- and disubstituted silylphosphanes (4c,d) and (5c,d), respectively; 4c and 4d were isolated by fractional condensation in the form of air- and moisture-sensitive oils. Lithiation of 1 with four molar equiv. of LiNiPr2 in THF/Et2O at -80 degreesC, surprisingly, leads to insoluble Si(PHLi)(4) (8a) which was tetrasilylated with iPr(3)SiOSO(2)CF(3), affording the tetrakis(triisopropylsilylphosphaneyl)silane (8b). However, attempts to achieve the tetralithiation of the P atoms in 8b through reaction with four molar equiv. BuLi leads to the unexpected cluster formation of butyl-tris[lithium(triisopropylsilyl)phosphanideyl] silane-dimer (9) in 30% yield and LiPHSiiPr(3); compound 9 consists of a Li6P6Si2 cluster framework.