trans-Os(H)Br(1,2-bis(diphenylphosphino)ethane)2 | 177897-68-6

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: trans-Os(H)Br(1,2-bis(diphenylphosphino)ethane)2
• 英文别名: trans-[OsH(Br)(PPh2(CH2)2PPh2)2]；trans-OsHBr(1,2-bis(diphenylphosphino)ethane)₂；trans-[OsH(Br)(dppe)2]；bromo(hydrido)osmium;2-diphenylphosphanylethyl(diphenyl)phosphane
• CAS: 177897-68-6
• 化学式: C₅₂H₄₉BrOsP₄
• 分子量: 1067.96
• InChiKey: ZCTQNEVTYSFWAT-UHFFFAOYSA-M

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：

  potassium cyanide 、 trans-Os(H)Br(1,2-bis(diphenylphosphino)ethane)2 以 甲醇 、 二氯甲烷 为溶剂， 以80%的产率得到trans-[OsH(CN)(PPh2(CH2)2PPh2)2]
  参考文献：
  名称：

  10.1039/b0056871

  摘要：

  DOI：

  10.1039/b0056871
• 作为产物：
  描述：

  diammonium hexabromoosmate(IV) 、 1,2-双(二苯基膦)乙烷 以 甲醇 、 乙醇 为溶剂， 以55%的产率得到trans-Os(H)Br(1,2-bis(diphenylphosphino)ethane)2
  参考文献：
  名称：

  运动频率接近 1H 拉莫尔频率的二氢。锇配合物反式-[Os(H··H)X(PPh2CH2CH2PPh2)2]+(X = Cl, Br)的固态结构和溶液核磁共振光谱

  摘要：

  描述了从 (NH4)2[OsBr6] 开始制备新配合物 OsBr2(dppe)2 和反式 OsHBr(dppe)2 的高产率路线。新的 5 配位配合物 [OsX(dppe)2]PF6 (X = Cl (8Os) 和 X = Br (9Os)) 是通过 cis-OsX2(dppe)2 与 NaPF6 反应制备的。配合物 8Os 和 9Os 由具有“Y”形赤道面的扭曲三角双锥阳离子组成。它们在 CH2Cl2 中与 H2 或 HD (1 atm) 反应生成反式-[Os(H··H)X(dppe)2]PF6 (X = Cl (1OsPF6), X = Br (2OsPF6)) 或反式- [Os(H··D)X(dppe)2]PF6。最后一个复合体分别具有 J(H,D) = 13.9 和 13.7 Hz。这些复合物的 BF4-盐 1OsBF4 和 2OsBF4 分别是通过反式 OsHX(dppe)2 与

  DOI：

  10.1021/ja9529044

文献信息

• Protonation Reactions of <i>trans</i>-M(H)(SPh)(dppe)₂ (M = Ru, Os) To Give Thiol and Dihydrogen Complexes. X-ray Crystal Structure Determination of <i>trans</i>-Ru(H)(SPh)(dppe)₂ and <i>trans</i>-[Os(H)(O₂)(dppe)₂](O₃SCF₃)
  作者：Tanya Y. Bartucz、Adina Golombek、Alan J. Lough、Patricia A. Maltby、Robert H. Morris、Ravindranath Ramachandran、Marcel Schlaf

  DOI：10.1021/ic971050g

  日期：1998.4.1

  The compounds trans-M(H)(SPh)(dppe)(2) (M = Ru (1Ru), Os (1Os); dppe = 1,2-bis(diphenylphosphino)ethane) are synthesized by reaction of NaSPh with trans-[Ru(H-2)(H)(dppe)(2)]BPh4 or with trans-Os(H)(Br)(dppe)2 in THF under Ar. They are characterized by H-1 and P-31 NMR, IR, FAB mass spectroscopy, elemental analyses, and cyclic voltammetry. The crystal structure determination of 1Ru verifies the trans, octahedral geometry, which is distorted by ring-ring interactions. The thiophenoxide ligand is coordinated to the metal in a bent configuration, with the phenyl ring sandwiched between two phenyl rings of one of the dppe ligands. The reaction of complexes 1 with 1 equiv of HBF4 . Et2O leads to the formation of the very reactive hydride thiol complexes trans-[M(H)-(HSPh)(dppe)(2)]BF4 (M = Ru (2Ru), Os (2Os)). Analogous complexes to 1Os and 2Os with SC6H4-4-F -F instead of SPh are also described. In all cases there is no evidence for the existence of the tautomeric dihydrogen complex trans-[M(H-2)(SAr)(dppe)(2)](+). Zn the presence of excess acid the diprotonated complex trans-[Os(H-2)(HSPh)-(dppe)(2)](BF4)(2) (3Os) is formed at 233 K where the T-1(min) of the H-2 ligand at 400 MHz is similar to 34 ms so that 0.98 less than or equal to d(HH) less than or equal to 1.24 Angstrom. Under certain conditions the labile PhSH ligand of 3Os is substituted by water to give trans[Os(H-2)(OH2)(dppe)(2)](BF4)2 (4OS). The thiol complexes 2 react rapidly with H-2(g) to give the complexes trans[M(H-2)H(dppe)(2)]BF4 (5Ru, 5Os). Complexes 3Os and 4Os also react with H-2 to give 5Os. N-2 and O-2(1 atm) displace the thiol in 2Os in CH2Cl2 to produce trans-[Os(H)(L)(dppe)(2)](+) (L eta(1)-N-2 (6Os), eta 2-O-2(7OS)). trans[Os(H)(O-2)(dppe)(2)]OTf . 3C(6)H(6) is characterized by X-ray diffraction.