tetracarbonyl{1,2-bis(diphenylphosphino)ethane}hydridotantalum | 111532-98-0

• 英文名称: tetracarbonyl{1,2-bis(diphenylphosphino)ethane}hydridotantalum
• CAS: 111532-98-0
• 化学式: C₃₀H₂₅O₄P₂Ta
• 分子量: 692.422
• InChiKey: HNWQIUGTDOSCLG-UHFFFAOYSA-N

计算性质

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

• 作为反应物：
  描述：

  tetracarbonyl{1,2-bis(diphenylphosphino)ethane}hydridotantalum 以 四氢呋喃 为溶剂， 以50%的产率得到trans-{HTa(CO)2(dppe)2}*0.5THF
  参考文献：
  名称：

  Aspects of carbonyltantalum chemistry

  摘要：

  UV irradiation of [Et4N][Ta(CO)6] in the presence of 2- to 4-dentate phosphines, p(n), yields [Et4N][Ta(CO)4pn]. Ion exchange chromatography on silica gel affords the hydrido complexes HTa(CO)4p2 or HTa(CO)3pn (n = 3, 4), which can be photochemically converted into HTa(CO)2pn. The structure in solution as judged from spectroscopic data is probably an octahedron capped by the hydride. In the solid state, an X-ray diffraction study of trans-[HTa(CO)2(dppe)2] indicates the presence of a pentagonal bipyramid with H-, Ta and the four P in the pentagonal plane. 2-methyl-2-butene is "hydrotantalated", mainly in the anti-Markovnikov manner, to yield the sigma-alkyl complex Me2CH-H(Me)CTa(CO)4p2 (p2 = Ph2PCH2CH2PEt2). The complexes HTa(CO)4/3pn react with pentafulvenes to form eta-5-(C5H4CHR2)Ta(CO)2pn (R2 = Me2, Ph2, NMe2 + H; p(n) = PhP(CH2CH2 PPh2)2). The hepta-coordinated chloride complexes ClTa(CO)6-npn have been prepared photochemically from [Et4N]Cl and HTa(CO)4pn (n = 4, p(n) = 2 dppe), or by reductive carbonylation of TaCl4 in the presence of p(n) (n = 3, p(n) = MeP(CH2CH2CH2PMe2)2).

  DOI：

  10.1016/0022-328x(92)83042-g
• 作为产物：
  描述：

  cis-{(C2H5)4N}{Ta(CO)4(C6H5)2PCH2CH2P(C6H5)2} 以 四氢呋喃 、 乙腈 为溶剂， 以84%的产率得到tetracarbonyl{1,2-bis(diphenylphosphino)ethane}hydridotantalum
  参考文献：
  名称：

  The seven-coordinate hydrido-tantalum complexes [Ta(H)(CO)6−n(oligophos)]: preparation and dynamics

  摘要：

  DOI：

  10.1016/0022-328x(87)80022-0

文献信息

• Synthesis and Properties of the 17-Electron, Tantalum-Centered Radical Ta(CO)₄(Ph₂PCH₂CH₂PPh₂)
  作者：Mary Ann Koeslag、Michael C. Baird、Sherri Lovelace、William E. Geiger

  DOI：10.1021/om960133m

  日期：1996.7.23

  The novel 17-electron compound Ta(CO)4dppe (dppe = Ph2PCH2CH2PPh2) is formed via hydride hydrogen atom abstraction from TaH(CO)4dppe by the tris(p-tert-butylphenyl)methyl radical. The compound exists in solution as an equilibrium mixture of monomer (the dominant species) and carbonyl-bridged dimer [Ta(CO)4dppe]2 but solely as the latter in the solid state. It is very labile but was characterized electrochemically

  新型17电子化合物Ta（CO）4 dppe（dppe = Ph 2 PCH 2 CH 2 PPh 2）是通过三（对-叔丁基苯基）甲基自由基从TaH（CO）4 dppe氢化物氢原子夺取而形成的。该化合物以单体（主要物质）和羰基桥联二聚体[Ta（CO）4 dppe] 2的平衡混合物形式存在于溶液中，但仅以固态形式存在。它非常不稳定，但是通过电化学，IR，拉曼和1 H和31 P 1用光谱和化学方法进行1 H NMR。典型的以金属为中心的自由基，Ta（CO）4 dppe从有机卤化物RX提取卤素原子，得到卤钽化合物TaX（CO）4 dppe，在某些情况下还提供TaR（CO）4 dppe。循环伏安法实验表明，CH 2 Cl 2 /0.1 M [Bu 4 N] [PF 6 ]中[Ta（CO）4（dppe）] -的氧化是单电子过程，在低于50 V的扫描速率下不可逆/ s。[Ta（CO）4（dppe）]
• Synthesis of hexacarbonyl derivatives of Group 5 metals and electron-transfer processes. Crystal and molecular structure of tetracarbonyl[1,2-bis(diphenylphosphino)ethane]iodotantalum
  作者：Fausto. Calderazzo、Guido. Pampaloni、Giancarlo. Pelizzi、Francesca. Vitali

  DOI：10.1021/om00095a011

  日期：1988.5.1
• Blaine, Christine A.; Ellis, John E.; Mann, Kent R., Inorganic Chemistry, 1995, vol. 34, # 6, p. 1552 - 1561
  作者：Blaine, Christine A.、Ellis, John E.、Mann, Kent R.

  DOI：——

  日期：——