| 115660-41-8

• CAS: 115660-41-8
• 化学式: C₁₄H₆N₂O₁₀Os₃
• 分子量: 942.699
• InChiKey: ZNZSHNUFLPXIMC-IMCUGYDLSA-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：

  、 以 甲苯 为溶剂， 生成 ((13)CO)10(μ-H)[C(O)CH2(W((13)CO)3(cyclopentadienyl))triosmium]
  参考文献：
  名称：

  Synthesis of Unsaturated Os3W2 and Metastable Os4W Oxo-Ethylidyne Clusters by Solid-State Pyrolysis. Direct C-O Bond Cleavage of a Coordinated Ketenyl Ligand

  摘要：

  Heterometallic ketenyl complex OS3(CO)10(mu-H)[C(O)CH2(W(CO)3CP)] (1a) possessing a pendant CPW(CO)3 substituent was prepared by condensation Of OS3(CO)10(NCMe)2 with the metal-aldehyde compleX CPW(CO)3CH2CHO. Pyrolysis of 1a in the solid state at 185-degrees-C afforded two heteropentametallic cluster compounds, CP2W2OS3(CO)12(mu-O)(mu3-CMe) (2) and CPWOS4-(CO)12(mu-O)(mu3-CMe) (3), demonstrating a unique example of C-0 bond scission of a ligated ketene fragment and a cluster aggregation process. Complex 2 crystallizes in orthorhombic space group Pnma with a = 18.913(4) angstrom, b = 16.229(3) angstrom, c = 9.129(2) angstrom, Z = 4, R = 0.054, and R(w) = 0.055 for 2551 observed reflections. The W2Os3 cluster that contains 72 cluster valence electrons has a distorted square-pyramidal array of metal atoms with one Os-H-Os hydride ligand, one bridging oxo ligand associated with a W-W double bond, and an ethylidyne ligand bridging a unique W2Os triangle. Crystals of 3 are monoclinic of space group P2(1)/n with a = 15.941(2) angstrom, b = 19.395(4) angstrom, c = 16.369(4) angstrom, beta = 94.72(2)-degrees, Z = 8, R = 0.050, and R(w) = 0.041 for 6568 observed reflections. This molecule possesses a WOS4 trigonal-bipyramidal skeleton with an oxo ligand bridging a W-Os edge and an ethylidyne ligand capping a WOS2 face, Isomerization of 3 occurred upon dissolution at room temperature to afford edge-bridging tetrahedral cluster CpWOS4(CO)12(mu3-0)(mu3-CMe) (4), in which the oxo ligand formally migrated from an edge-bridging to a face-bridging position. Pyrolysis of 4 in the solid state at 190-degrees-C regenerated 3 in h gh yield, suggesting the existence of a delicate equilibrium between these two cluster complexes. Crystal data for 4: space group P2(1)/n, a = 9.492(3) angstrom, b = 16.990(2) angstrom, c = 15.887(3) angstrom, beta = 98.79(2)-degrees, Z = 4. The structure was solved by direct methods and refined to R and R(w) values of 0.039 and 0.032 for 4455 observed reflections with I > 2sigma(I).

  DOI：

  10.1021/om00017a032

文献信息

• Synthesis and solution studies of Os3(CO)9L(R2C2) (L = CO, MeCN, P(OMe)3 or PPh3); crystal and molecular structure of Os3(CO)9P(OMe)3(Ph2C2)
  作者：Mark A. Gallop、Brian F.G. Johnson、Rajesh Khattar、Jack Lewis、Paul R. Raithby

  DOI：10.1016/0022-328x(90)80261-w

  日期：1990.4

  σ-bonded acetylenic carbon and occupying a pseudo equatorial position. 13C NMR studies have been carried out on the complex Os3(CO)9L(Me2C2) (L = CO, P(OMe)3 or PPh3) to give information about the structure in solution. The carbonyl ligands in all of these complexes are fluxional, and an intramolecular mechanism by which the carbonyls interchange between the three osmium atoms, in each complex, is discussed

  Os 3（CO）10（R 2 C 2）（R = Ph，Et或Me）与1.1当量的Me 3 NO在-78°C的MeCN存在下反应生成迷离的簇Os 3（CO）9（NCMe） - （R 2 C ^ 2），其在与炔（R反应' 2 c ^ 2），得到紫色已知复合式O的3（CO）9（R 2 ç 2）（R' 2 C ^ 2），其中两个炔烃分子均通过碳-碳键连接而产生一个渗透环。使用简单的磷供体配体L（其中L = P（OMe）3，PPh 3），簇Os 3（CO）9（NCMe）（R 2 C 2）提供相应的取代配合物Os 3（CO）9 L（ R 2 C 2）的产率高达80％。Os 3（CO）9 P（OMe）3（Ph 2 C 2的结构）是通过单晶X射线研究确定的。该结构是基于与所述二苯基乙炔的三角形金属骨架配体在键合μ 3 -η 2 - |η-键接模式下，形成两个σ-和一个π键与锇原子，一个P（OME）3配体附
• Hydride fluxionality in high-nuclearity osmium carbonyl clusters
  作者：Simon R. Drake、Brian F. G. Johnson、Jack Lewis

  DOI：10.1039/dt9880001517

  日期：——