(bromo)(carbonyl)4(PPh2C2H4PPh2)vanadium(I) | 157959-02-9

• 英文名称: (bromo)(carbonyl)4(PPh2C2H4PPh2)vanadium(I)
• CAS: 157959-02-9
• 化学式: C₃₀H₂₄BrO₄P₂V
• 分子量: 641.311
• InChiKey: RTJQZJDKXIATIH-UHFFFAOYSA-M

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

• 作为产物：
  描述：

  tetraethylammonium hexacarbonylvanadium(-1) 、 吡啶溴化氢盐 、 1,2-双(二苯基膦)乙烷 以 四氢呋喃 为溶剂， 以75%的产率得到(bromo)(carbonyl)4(PPh2C2H4PPh2)vanadium(I)
  参考文献：
  名称：

  羟基羰基钒-铜络合物：Darstellung und Charakterisierung von Alkylvanadium-Komplexen，以及反式-[V（CO）2（Ph 2 PCH 2 CH 2 PPh 2）2 ]

  摘要：

  通式RV（CO）n p m（n = 4，3 ; p m是通过（6- n P-官能团）配位的m齿膦的各种σ-烷基钒配合物已通过氢化物前体HV（CO）n p m和烯烃，并通过IR和51 V NMR光谱进行表征。制备新的膦Me 2 P（CH 2）3 P（i Pr）2和i PrP（CH 2 CH）2 CH 2 PMe2）描述2。反式- [V（CO）2（DPPE）2 ]结晶在空间群P用下面的晶胞参数L：一个= 1012.1（9），b = 1012.9（6），C ^ = 1224.7（9）时，α= 105.780（6），β= 102.601（7）°。

  DOI：

  10.1016/0022-328x(91)83041-2

文献信息

• ∑-Alkenyl and halogeno complexes of vanadium (I and II). The crystal structures of (C1V(CO)2(Ph2PCH2CH2PEt2)2 · benzene, Br2V(Me2PCH2CH2PMe2)2 and I2V(Me2PCH2CH2PMe2)2 · toluene
  作者：Frank Süßmilch、Falk Olbrich、Hartmut Gailus、Dieter Rodewald、Dieter Rehder

  DOI：10.1016/0022-328x(94)80199-1

  日期：1994.6

  Various sigma-alkenyl complexes of the general composition (alkenyl)V(CO6-npm (where n = 2, 3 and p(m) is a potentially m-dentate phosphine coordinated through n of its donor centres, n less-than-or-equal-to m) have been prepared by photo-induced hydrovanadation of the alkynes 2-butyne, 1-hexyne, 3-hexyne and 3,3-dimethyl-1-butyne. In each case the Z isomer is formed exclusively or as the predominant product. Reaction of hexacarbonylvanadate with pyridinium bromide and p(m) leads to the bromo complexes BrV(CO)6-npm (n = 2-4). In the case of p(m) = Me2PCH2CH2PMe2 (dmpe), the complex Br2V(dmpe) is also formed. The complex I2V(dmpe)2 . toluene was obtained as a by-product from the reaction between [Et4N][V(CO)4dmpe] and perfluoro-isopropyl iodide. The face-capped, trigonal-prismatic complex ClV(CO)2(pepe)2 . benzene (pepe = Ph2PCH2CH2PEt2) was obtained from the photo-reaction between HV(CO)4pepe and [Et4N]Cl. Single-crystal X-ray diffraction studies were carried out on all three complexes. The V-50 NMR chemical shifts for the seven-coordinate complexes XV(CO)npm have been used to arrange the ligands X in a magnetochemical series of ligand strengths (alkenyl congruent-to alkyl < SiMe3 < H congruent-to Br congruent-to I < O2CR < Cl congruent-to N3 < CN).