diiodo-tris(2-phenylethyl)-λ5-phosphane | 149683-89-6

• 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: diiodo-tris(2-phenylethyl)-λ5-phosphane
• CAS: 149683-89-6
• 化学式: C₂₄H₂₇I₂P
• 分子量: 600.261
• InChiKey: ZQDWRNGRJFBWQJ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  7.97
• 重原子数：
  27.0
• 可旋转键数：
  9.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  0.0
• 氢给体数：
  0.0
• 氢受体数：
  0.0

反应信息

• 作为反应物：
  描述：

  diiodo-tris(2-phenylethyl)-λ5-phosphane 、 钴 以 乙醚 为溶剂， 以>99的产率得到
  参考文献：
  名称：

  Inorganic Grignard analogues. Reaction of cobalt powder with triorganodiiodophosphorus compounds to form [PR3I][Co(PR3)I3]. Crystal structure of [PPh3I][Co(PPh3)I3], and isolation of the novel complexes [PPh3I][Co(PPh3)IBr2] and [SbPh3I][Co(SbPh3)I3]

  摘要：

  The reactions of a large number of triorganodiiododophosphorus compounds, R3PI2 [R3 = Et3, Pr(n)3, Bu(n)3, PhMe2, Ph2Me, Ph2Pr(n), Ph3 (o-,m- or p-MeC6H4)Ph2, or (m-MeC6H4)3], with unactivated cobalt metal in dry diethyl ether have been studied. All reactions produce the novel ionic complexes [PR3I][Co(PR3)I3] in quantitative yield, illustrated crystallographically for [PPh3I][Co(PPh3)I3]. However, where R3 = PhMe2 both the ionic complex and the cobalt(III) complex [Co(PPhMe2)2I3] are produced from the same reaction. The previously reported isolation of the 'frozen transition-state complex' [Co(PBun3)3I8] from the reaction of Bun3PI2 with cobalt powder has been reinvestigated; when allowed to proceed to completion, the reaction produces the ionic complex described above. The compound Ph3PIBr reacts with cobalt powder to produce the mixed-halide ionic complex [PR3I][Co(PR3)IBr2]. All the complexes [PR3I][Co(PR3)I3] have been studied using Raman and visible spectroscopy, the latter confirming the tetrahedral geometry of the cobalt anion. Very little reaction is observed with the corresponding dibromophosphorus compounds, R3PBr2, but in some cases visible spectroscopic studies on the trace of complex formed suggest a tetrahedral cobalt(II) species, perhaps similar to the iodo-complexes described above. Additionally, Ph3SbI2 reacts with cobalt metal in an analogous way to Ph3PI2 to produce the novel complex [SbPh3I][Co(SbPh3)I3].

  DOI：

  10.1039/dt9930001599

文献信息

• The reaction of triorganophosphorus diiodides, R3PI2, with zinc metal powder; dependency of product on R; the X-ray crystal structures of dimeric {ZnI2[P(NMe2)3]}2 and monomeric ZnI2(PPh2Me)2
  作者：Stephen M Godfrey、Charles A McAuliffe、Robin G Pritchard、Joanne M Sheffield

  DOI：10.1016/s0020-1693(99)00197-8

  日期：1999.9

  and an equimolar quantity of zinc(II) iodide, the latter product being identified by X-ray powder diffraction. The X-ray crystal structures of dimeric ZnI 2 [P(NMe 2 ) 3 ]} 2 and monomeric ZnI 2 (PPh 2 Me) 2 are also described. The formation of the bis complexes ZnI 2 (PR 3 ) 2 (R 3 =Ph 3 , Ph 2 Me, Ph 2 Et) is surprising and cannot be due to steric factors since complexes containing less bulky tertiary

  摘要通过与元素R 3 PI 2反应，由元素锌直接合成了17个锌（II）叔膦配合物。该复合物已通过元素分析和31 P H} NMR光谱进行了表征。本工作代表了对包含不同母体叔膦的多种锌（II）叔膦配合物的首次全面研究，并且首次报道了大多数配合物。在大多数情况下，R 3 PI 2与锌金属粉末在乙醚中以1：1的化学计量比反应，生成二聚体络合物[ZnI 2（PR 3）] 2，类似于先前报道的[ZnI 2（PEt 3 ）] 2。相反，R 3 PI 2（R = Ph 3，Ph 2 Et，含锌金属粉末的Ph 2 Me）生成单体双络合物ZnI 2（PR 3）2和等摩尔量的碘化锌（II），后者的产物通过X射线粉末衍射鉴定。还描述了二聚体ZnI 2 [P（NMe 2）3]} 2和单体ZnI 2（PPh 2 Me）2的X射线晶体结构。双络合物ZnI 2（PR 3）2（R 3 = Ph 3，Ph 2 Me，Ph
• Inorganic grignard analogues. Reaction of nickel powder with dihalogenotriorganophosphorus compounds to form nickel-(II) and -(III) phosphine complexes; isolation of planar [Ni(PPh3)I3]? and the crystal structure of [Ni(PPhMe2)2Br2]
  作者：Stephen M. Godfrey、Charles A. McAuliffe、Robin G. Pritchard

  DOI：10.1039/dt9930002875

  日期：——

  Reactions of dihalogenotriorganophosphorus compounds R3PX2 (X = Br or I) with unactivated coarse-grain nickel metal powder have been investigated. The nature of the nickel phosphine complexes formed is remarkably dependent on both R and X. Where R not-equal Me and X = I the nickel(II) complexes [R3PI] [Ni(PR3)I3] are formed, analogous to, but not isostructural with, similar cobalt complexes of the same stoichiometry formed from cobalt powder and R3PI2. Quantitative electronic spectroscopic studies indicated that, surprisingly, the [R3PI][Ni(PR3)I3] complexes all have predominantiy square-planar geometry around nickel. Where R = Me and X = 1, the nickel(III) complex [Ni(PMe3)2I3] is obtained in quantitative yield, the other product being diiodine. Reaction of nickel powder with Me2PhPI2 yields both the nickel(II) complex, [MePhPI][Ni(PPhMe2)I3], and the nickel(III) complex, [Ni(PPhMe2)2I3]. These observations again mirror analogous cobalt reactions. Reaction of the analogous dibromo compounds, R3PBr2, with nickel powder is extremely sensitive to the nature of R. Where R = Me, Et or Pn(n) no reaction occurs; where R3 = PhMe2 the square-planar complex [Ni(PPhMe2)2Br2] and an octahedral complex of stoichiometry Ni(PPhMe2)2Br, are obtained in equal yield. Where R3 = Ph2Pr(n) the octahedral complex [Ni(PPh2Prn)2Br4] is formed with a trace of the planar complex [Ni(PPh2Prn)2Br2], and where R = Ph the octahedral complex [Ni(PPh3)2Br4] is formed in quantitative yield. The complex [Ni(PPhMe2)2Br] has been crystallographically characterised: monoclinic, space group P2(1)/a, a = 10.018(2), b = 10.249(1), c = 10.138(1) angstrom and Z = 2 (molecule centrosymmetric).