(η(6)-2,2'-biindenyl)Cr(CO)3 | 170704-34-4

• 英文名称: (η(6)-2,2'-biindenyl)Cr(CO)3
• CAS: 170704-34-4
• 化学式: C₂₁H₁₄CrO₃
• 分子量: 366.336
• InChiKey: XXHLHDNAKHFJLG-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：
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反应信息

• 作为产物：
  描述：

  tris(ammonia)chromium tricarbonyl 、 2,2'-Biindene 在 BF₃ * Et₂O 作用下， 以 乙醚 为溶剂， 以48%的产率得到(η(6)-2,2'-biindenyl)Cr(CO)3
  参考文献：
  名称：

  Synthesis and Structure of Novel Group 6 Complexes of Dibenzofulvalenes

  摘要：

  The complexes (mu,eta(5):eta(5)-dibenzo[a,d]fulvalene)M(2)(CO)(6) (1a, M = Cr; 1b, M = Mo; 4, M = Mo, [a,f] isomer; 1c, M = W) were prepared in the cases of Cr and Mo by a one-pot double-deprotonation, migration, and oxidation sequence starting with mu,eta(6):eta(6)-3,3'-biindenyl)M(2)(CO)(6) (3a,b) and in the case of W directly from 1,1'-biindenyl and W(CO)(3)(py)(3). The dianion of la reacted with Diazald to give (mu,eta(5):eta(5)-dibenzo[a,d]fulvalene)Cr-2(CO)(4)(NO)(2), 15, Crystal structures were determined for 3a, 4, and the trimethyl phosphite substitution product of 1b (11). The solid state conformation of 3a apparently results from a compromise between the tendency of the tricarbonylchromium moieties to point in opposite directions and the preference for an s-trans configuration of the organic ligand. The Mo-Mo bond length in 4 is 3.286(4) Angstrom, compared with 3.371(1) Angstrom found in (fulvalene)dimolybdenum hexacarbonyl; both structures exhibit comparable degrees of pyramidalization, although the annulated analogue is significantly more twisted. The Mo-Mo bond of 11 was also shorter (3.317 Angstrom than that of the fulvalene analogue. The degree of twisting found in 11 is intermediate between 4 and (fulvalene)dimolybdenum hexacarbonyl.

  DOI：

  10.1021/om00010a042