{(η5-C5H5)Cr(CO)2}2(μ-η2-As2) | 132344-58-2

• 英文名称: {(η5-C5H5)Cr(CO)2}2(μ-η2-As2)
• 英文别名: [CpCr(CO)2]2(μ-η(2)-As2)
• CAS: 132344-58-2
• 化学式: C₁₄H₁₀As₂Cr₂O₄
• 分子量: 496.066
• InChiKey: ZPAPBCXIJRUZDA-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：

  {(η5-C5H5)Cr(CO)2}2(μ-η2-As2) 以 氘代甲苯 为溶剂， 生成 {(η5-C5H5)Cr(As5)Cr(η5-C5H5)}
  参考文献：
  名称：

  Synthesis and thermolysis of di- and triarsenic complexes of chromium. Crystal structure of [CpCr(CO)2]2As2

  摘要：

  The cothermolysis of [CpCr(CO)3]2 (Cp = eta-5-C5H5) with excess gray arsenic in refluxing toluene for 1-1.5 h resulted in the isolation of Cp2Cr2(CO)4(mu-eta-2-As2) (2), CpCr(CO)2(eta-3-As3) (3), Cp2Cr2(CO)4(Cr = Cr) (4), and Cp2Cr2AsO5 (6) in 20.4, 14.2, 5.3, and 13.6% yields, respectively. The reaction when extended to 16 h gave 3, Cp2Cr2As5 (5), 6, and Cp5Cr5As4O8 (7) in 5, 22, 39, and 8% yields, respectively. In refluxing xylene for 6 h, the reaction produced 3 (3%) and 7 (15%). 4 likewise reacted with excess elemental arsenic in refluxing toluene, yield 2 (18.5%), 3 (31.9%), and 6 (38.3%) after 1 h but only 2 (18.6%) and 6 (44.2%) after 5 h. Thermal degradation of 2 at 110-degrees-C for 16 h yielded 6 (46.5%) and 7 (28%). 3 also degrades to 5, but at a much slower rate. 2 crystallizes as dark purple needles. Crystal data: space group C2/c (No. 15), Z = 4, alpha = 15.551 (3) angstrom, b = 7.453 (1) angstrom, c = 13.446 (2) angstrom.

  DOI：

  10.1021/om00050a015
• 作为产物：
  描述：

  di-η5-cyclopentadienyldichromiumtetracarbonyl 、 砷化氢 以 甲苯 为溶剂， 以44.2%的产率得到(η5-C5H5)2Cr2AsO5
  参考文献：
  名称：

  Synthesis and thermolysis of di- and triarsenic complexes of chromium. Crystal structure of [CpCr(CO)2]2As2

  摘要：

  The cothermolysis of [CpCr(CO)3]2 (Cp = eta-5-C5H5) with excess gray arsenic in refluxing toluene for 1-1.5 h resulted in the isolation of Cp2Cr2(CO)4(mu-eta-2-As2) (2), CpCr(CO)2(eta-3-As3) (3), Cp2Cr2(CO)4(Cr = Cr) (4), and Cp2Cr2AsO5 (6) in 20.4, 14.2, 5.3, and 13.6% yields, respectively. The reaction when extended to 16 h gave 3, Cp2Cr2As5 (5), 6, and Cp5Cr5As4O8 (7) in 5, 22, 39, and 8% yields, respectively. In refluxing xylene for 6 h, the reaction produced 3 (3%) and 7 (15%). 4 likewise reacted with excess elemental arsenic in refluxing toluene, yield 2 (18.5%), 3 (31.9%), and 6 (38.3%) after 1 h but only 2 (18.6%) and 6 (44.2%) after 5 h. Thermal degradation of 2 at 110-degrees-C for 16 h yielded 6 (46.5%) and 7 (28%). 3 also degrades to 5, but at a much slower rate. 2 crystallizes as dark purple needles. Crystal data: space group C2/c (No. 15), Z = 4, alpha = 15.551 (3) angstrom, b = 7.453 (1) angstrom, c = 13.446 (2) angstrom.

  DOI：

  10.1021/om00050a015

文献信息

• Coordination of the (μ-η2-As2) ligand to group 6 transition metal carbonyl fragments and crystal structures of Cp2Cr2(CO) 4As2[M(CO)5]2 (M  Cr, W)
  作者：Lai Yoong Goh、Wei Chen、Richard C.S. Wong

  DOI：10.1016/0022-328x(95)05501-f

  日期：1995.11

  [CpCr(CO)2]2(μ-η2-As2) (1) reacts with 2 mol equiv. of M(CO)5(THF) to give the adducts [CpCr(CO)2]2(μ-η2-As2)[M(CO)5]2 (2A, M  Cr; 2B, M  W) in 55–60% isolated yields. The adducts are isostructural, possessing a crystallographic C2 axis through the midpoints of the AsAs and CrCr bonds. Bonding parameters are indicative of a small degree of steric effects imposed by the coordinated M(CO)5 fragments

  [CPCR（CO）2 ] 2（μ - η 2 -As 2）（1）反应与2mol当量。的M（CO）5（THF），得到加合物[CPCR（CO）2 ] 2（μ - η 2 -As 2）[M（CO）5 ] 2（2A，男铬;图2B中，MW¯¯ ）以55–60％的独立收益率。加合物是同构的，具有晶体学C 2。轴穿过AsAs和CrCr键的中点。键合参数表明由配位的M（CO）5片段施加的空间效应程度较小。