ortho-diarsacarborane | 51292-90-1

• 英文名称: ortho-diarsacarborane
• 英文别名: 1,2-As2B10H10；1,2-closo-As2B10H10
• CAS: 51292-90-1
• 化学式: As₂B₁₀H₁₀
• 分子量: 268.033
• InChiKey: GYCODUGCKXTMHT-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：
  None
• 氢受体数：
  None

反应信息

• 作为反应物：
  描述：

  四(三苯基膦)铂 、 ortho-diarsacarborane 在 CH₂Cl₂ 作用下， 以 乙醇 为溶剂， 以9.3%的产率得到3,3-bis(triphenylphosphine)-1,2-diarsa-3-platina-closo-dodecaborane*0.5CH2Cl2
  参考文献：
  名称：

  Metallaheteroborane chemistry. Part 9. Syntheses and spectroscopy of platinum and palladium phosphine complexes containing η⁵-{As₂B₉}-based cluster ligands. Crystal structures of [3,3-L₂-closo-3,1,2-PtAs₂B₉H₉](L = PPh₃or PMe₂Ph) and [3-Cl-3,8-(PPh₃)₂-closo-3,1,2-PdAs₂B₉H₈]

  摘要：

  The reaction between [Pt(PPh3)4] and closo-1,2-As2B10H10 in ethanol gives [3,3-(PPh3)2-closo-3,1,2-PtAs2B9H9] 1 in low yield (9%). Reaction of [nido-7,8-As2B9H10]- and [MCl2(PR3)2] in tetrahydrofuran(thf) in the presence of a ten-fold excess of NEt3 affords [3,3-(PR3)2-closo-3,1,2-MAs2B9H9] (M = Pt, R3 = Me2Ph 2; M = Pd, R3 = Ph3 3 or Me2Ph 4) and [3-Cl-3,8-(PR3)2-closo-3,1,2-PdAs2B9H8] (R3 = Ph3 5; or R3 = Me2Ph, 6) in low-to-moderate (20-45%) yields. X-Ray diffraction analyses of 1, 2 and 5 confirm the closo icosahedral MAs2B9 cage structures and the presence of a MAs2 triangulated face in each of these molecules. Both compounds 1 and 2 crystallise in the monoclinic space group P2(1)/n with Z = 4. Cell dimensions: 1, a = 1230.0(2), b = 1736.5(4), c = 1881.0(3) pm and beta = 91.44(2)-degrees; 2, a = 1308.6(3), b = 1058.0(2), c = 1934.7(3) pm and beta = 104.45(2)-degrees. The structure of 1 was refined to a final R of 0.0574 (R' 0.0532) for the 4160 reflections with I greater-than-or-equal-to 2.0-sigma(I). One of the As atoms is disordered over two sites. Calculated Pt-As distances are 259.1(5), 255.7(5) and 264.0(6) pm, As-As 251.5(6) and 243.5(5) pm. Structure 2 had a final R of 0.0384 (R' 0.0376) for the 3778 reflections with I greater-than-or-equal-to 2.0-sigma(I). The Pt-As distances are 265.5(4) and 254.5(4) pm and As-As is 249.7(3) pm. Compound 5 crystallises in the triclinic space group P1BAR with Z = 2, a = 1037.8(2), b = 1321.9(3), c = 1712.9(3) pm, alpha = 103.67(1), beta = 93.19(1) and gamma = 110.86(1)-degrees; final R = 0.0392 (R' = 0.0408) for 4688 reflections with I greater-than-or-equal-to 2.0-sigma(I). The Pd-As distances are 256.3(4) and 253.9(4) pm and As-As is 247.7(3) pm. Compounds 1-6 were characterised by multielement NMR spectroscopy. Variable-temperature H-1 studies of 2, 4 and 6 show the metal to As2B9 ligand bonding is fluxional at room temperature with DELTA-G double-ended dagger 298 < ca. 30 kJ mol-1 for 2 and 4 and possibly slightly higher for 6 at ca. 32 kJ mol-1. An analysis of the frontier molecular orbitals of the model ligand P2B9H9 and their possible interactions with a Pt(PH3)2 group shows no clear preference between the two possible conformations that the PtP2 unit could adopt above the P2B3 face to which it bonds.

  DOI：

  10.1039/dt9910003223
• 作为产物：
  描述：

  decaborane 、 三氯化砷 在 三乙胺 作用下， 以 四氢呋喃 为溶剂， 以51%的产率得到ortho-diarsacarborane
  参考文献：
  名称：

  Hanusa, Timothy P.; De Parisi, Nuria Roig; Kester, John G., Inorganic Chemistry, 1987, vol. 26, # 24, p. 4100 - 4102

  摘要：

  DOI：

文献信息

• Little, John L.; Whitesell, Michael A.; Kester, John G., Inorganic Chemistry, 1990, vol. 29, # 4, p. 804 - 808
  作者：Little, John L.、Whitesell, Michael A.、Kester, John G.、Folting, Kirsten、Todd, Lee J.

  DOI：——

  日期：——
• Little, John L.; Whitesell, Michael A.; Chapman, Robert W., Inorganic Chemistry, 1993, vol. 32, # 15, p. 3369 - 3372
  作者：Little, John L.、Whitesell, Michael A.、Chapman, Robert W.、Kester, John G.、Huffman, John C.、Todd, Lee J.

  DOI：——

  日期：——
• Jasper Jr., Steve A.; Roach, Steve; Stipp, John N., Inorganic Chemistry, 1993, vol. 32, # 14, p. 3072 - 3080
  作者：Jasper Jr., Steve A.、Roach, Steve、Stipp, John N.、Huffman、Todd, Lee J.

  DOI：——

  日期：——