{Ta(H)(CO)3C6H5P{CH2CH2P(C6H5)2}2} | 141318-50-5

• 英文名称: {Ta(H)(CO)3C6H5P{CH2CH2P(C6H5)2}2}
• CAS: 141318-50-5；108443-55-6
• 化学式: C₃₇H₃₄O₃P₃Ta
• 分子量: 800.544
• InChiKey: UFEAVUKJXHHKNN-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 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：
  None

反应信息

• 作为反应物：
  描述：

  {Ta(H)(CO)3C6H5P{CH2CH2P(C6H5)2}2} 、 6-(二甲氨基)富烯 以 四氢呋喃 为溶剂， 以35%的产率得到cis-{η5-(C5H4CH2N(CH3)2)Ta(CO)2(p*3)}
  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：

  {Ta(H)(CO)4C6H5P{CH2CH2P(C6H5)2}2} 以 四氢呋喃 为溶剂， 生成 {Ta(H)(CO)3C6H5P{CH2CH2P(C6H5)2}2}
  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

• Chemie der carbonylniobverbindungen
  作者：Dieter Rehder、Peter Oltmanns、Martin Hoch、Carola Weidemann、Wolfgang Priebsch

  DOI：10.1016/s0022-328x(00)99517-2

  日期：1986.7

  Complexes of the general formula HM(CO)n(oligophos) (M = V, n = 2; M = Nb, n = 3 and 2; M = Ta, n = 3) have been prepared by ion exchange on silica gel from their ionic precursors [Et4N][M(CO)4,3(oligophos)] (n = 3) or by UV irradiation of HM(CO)n+1(oligophos) (n = 2). The new compounds, including fac-[Et4N]-[Nb(CO)3PPh(CH2CH2PPh2)2] and cis-[Et4N][Ta(CO)4PPh(CH2CH2PPh2)2], are characterized by their

  通式HM（CO）n（oliphophos）的配合物（M = V，n = 2； M = Nb，n = 3和2； M = Ta，n = 3）是通过在硅胶上通过离子交换从它们的离子前体[Et 4 N] [M（CO）4,3（oligophos）]（n = 3）或通过HM（CO）n +1（oligophos）的紫外线照射（n = 2）。新化合物包括fac- [Et 4 N]-[Nb（CO）3 PPh（CH 2 CH 2 PPh 2）2 ]和顺式-[Et 4 N] [Ta（CO）4 PPh（CH 2 CH 2 PPh 2）2 ]的特征在于其IR（ν（CO）），1 H（氢化物），31 P和金属（51 V和93 Nb）NMR光谱。