| 176227-06-8

• CAS: 176227-06-8
• 化学式: C₃₇H₂₃FeIr₈O₂₂P₃
• 分子量: 2506.1
• InChiKey: HHWTZDWDYJHRRE-UHFFFAOYSA-N

反应信息

• 作为反应物：
  描述：

  以 苯 为溶剂， 以65%的产率得到
  参考文献：
  名称：

  Syntheses and structural characterisation of [Ir₄(CO)₁₁(η¹-L)] and [Ir₄(CO)₁₀(η¹-L)₂]{L =[Fe(η⁵-P₃C₂Bu^t₂)(η⁵-P₂C₃Bu^t₃)] and [Fe(η⁵-C₅H₅)(η⁵-P₃C₂Bu^t₂)]} and [Ir₄(CO)₁₁{µ-η¹: η¹-[Fe(η⁵-C₅H₅)(η⁵-P₃C₂Bu^t₂)]}Ir₄(CO)₁₁] and its facile conversion to [Ir₄H(CO)₁₀{Fe(η⁵-C₅H₅)[η⁵-P₃C(CMe₂CH₂)CBu^t]}Ir₄(CO)₁₁], via an unusual C–H activation

  摘要：

  The reactions of NBu(4)[Ir-4(CO)(11)Br] 1 with equivalent amounts of [Fe(eta(5)-P(3)C(2)Bu(2)(t))(eta(5)-P(2)C(3)Bu(3)(t))] L(1) or [Fe(eta(5)-C5H5)(eta(5)-P(3)C(2)Bu(2)(t))] L(2) in the presence of AgSbF6 gave good yields of [Ir-4(CO)(11)(eta(1)-L)] 2a or 2b, besides [Ir-4(CO)(10)(eta(1)-L)(2)] 3a and 3b, respectively, in which the ligands are bound via the P-A atom. The solid-state structure of 2b, established by an X-ray analysis, is that of the T-d-like isomer, although the low-temperature P-31-{H-1} NMR spectrum showed the presence of both C-3v- and T-d-like isomers in solution. Compound 2a underwent facile conversion to [Ir-4(CO)(10)(mu-eta(2)-L(1))] 4a via CO loss and further interaction of the adjacent P-B atom of L(1). Compound 2b reacted with 1 in the presence of AgSbF6 to yield [Ir-4(CO)(11)-(mu-eta(1):eta(1)-L(2))Ir-4(CO)(11)] 5b, in which the second Ir-4 cluster was ligated via P-C, rather than P-B, according to NMR spectroscopy. This compound underwent clean conversion into [Ir4H(CO)(10){Fe(eta(5)-C5H5)[eta(5)-P3C(CMe(2)CH(2))CBu(t)]}Ir-4(CO)(11)] 6b, via CO loss and oxidative addition of a C-H bond of a tert-butyl substituent in the P(3)C(2)Bu(2)(t) ring. The molecular structure of 6b was determined by a single crystal X-ray diffraction analysis, which showed that C-H activation occurred on the Ir-4 cluster bound via P-C.

  DOI：

  10.1039/dt9960000739
• 作为产物：
  描述：

  [Ir4(CO)11Br][NBu4] 、 在 AgSbF₆ 作用下， 以 四氢呋喃 为溶剂， 以60%的产率得到
  参考文献：
  名称：

  Syntheses and structural characterisation of [Ir₄(CO)₁₁(η¹-L)] and [Ir₄(CO)₁₀(η¹-L)₂]{L =[Fe(η⁵-P₃C₂Bu^t₂)(η⁵-P₂C₃Bu^t₃)] and [Fe(η⁵-C₅H₅)(η⁵-P₃C₂Bu^t₂)]} and [Ir₄(CO)₁₁{µ-η¹: η¹-[Fe(η⁵-C₅H₅)(η⁵-P₃C₂Bu^t₂)]}Ir₄(CO)₁₁] and its facile conversion to [Ir₄H(CO)₁₀{Fe(η⁵-C₅H₅)[η⁵-P₃C(CMe₂CH₂)CBu^t]}Ir₄(CO)₁₁], via an unusual C–H activation

  摘要：

  The reactions of NBu(4)[Ir-4(CO)(11)Br] 1 with equivalent amounts of [Fe(eta(5)-P(3)C(2)Bu(2)(t))(eta(5)-P(2)C(3)Bu(3)(t))] L(1) or [Fe(eta(5)-C5H5)(eta(5)-P(3)C(2)Bu(2)(t))] L(2) in the presence of AgSbF6 gave good yields of [Ir-4(CO)(11)(eta(1)-L)] 2a or 2b, besides [Ir-4(CO)(10)(eta(1)-L)(2)] 3a and 3b, respectively, in which the ligands are bound via the P-A atom. The solid-state structure of 2b, established by an X-ray analysis, is that of the T-d-like isomer, although the low-temperature P-31-{H-1} NMR spectrum showed the presence of both C-3v- and T-d-like isomers in solution. Compound 2a underwent facile conversion to [Ir-4(CO)(10)(mu-eta(2)-L(1))] 4a via CO loss and further interaction of the adjacent P-B atom of L(1). Compound 2b reacted with 1 in the presence of AgSbF6 to yield [Ir-4(CO)(11)-(mu-eta(1):eta(1)-L(2))Ir-4(CO)(11)] 5b, in which the second Ir-4 cluster was ligated via P-C, rather than P-B, according to NMR spectroscopy. This compound underwent clean conversion into [Ir4H(CO)(10){Fe(eta(5)-C5H5)[eta(5)-P3C(CMe(2)CH(2))CBu(t)]}Ir-4(CO)(11)] 6b, via CO loss and oxidative addition of a C-H bond of a tert-butyl substituent in the P(3)C(2)Bu(2)(t) ring. The molecular structure of 6b was determined by a single crystal X-ray diffraction analysis, which showed that C-H activation occurred on the Ir-4 cluster bound via P-C.

  DOI：

  10.1039/dt9960000739