(C5Me5)2Nb(μ2-SeH) | 213406-78-1

• 英文名称: (C5Me5)2Nb(μ2-SeH)
• CAS: 213406-78-1
• 化学式: C₂₀H₃₁NbSe₂
• 分子量: 522.293
• InChiKey: LCFYZKOBDKDQLL-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

• 作为反应物：
  描述：

  pentacarbonyl(tetrahydrofuran)molybdenum(0) 、 (C5Me5)2Nb(μ2-SeH) 以 四氢呋喃 为溶剂， 以67%的产率得到
  参考文献：
  名称：

  Syntheses and properties of tetrathio- and tetraseleno metalates [(C5Me4R)2NbE2]2M (E=S, Se; M=Cr, Mo; R=Me, Et) with peripheric niobocene ligands

  摘要：

  Reactions of Cp-2*Nb(eta(2)-S-2)H 1 (Cp* = C5Me5 (a), C5Me4Et (b)) and Cp-2*Nb(eta(2)-Se2H) 3 with 0.5 equivalents of M(CO)(6) (M = Cr, Mo) in boiling toluene give the CO free complexes [Cp-2*NbE2](2)M 4-7. X-ray diffraction analyses have been carried out for the Mo complexes 5a (E = S) and 7a (E = Se) showing that the structures contain ME4 tetrahedral cores with two attached niobocene ligands thus forming a nearly linear trimetallic unit. Absorption spectra and electrochemical studies of complexes 4-7 are described. Characteristic of the novel CrSe4 chromophor are four reversible one electron redox steps. Chemical oxidation of 4a and 5a with [(C5H5)(2)Fe]PF6 gives the salts {[Cp-2*NbS2](2)M}PF6 (M = Cr, Mo) 10 and 11. A qualitative EHMO analysis provides evidence for a strong delocalisation of electron density over the whole metal-ligand system. (C) 1998 Elsevier Science S.A. All rights reserved.

  DOI：

  10.1016/s0022-328x(98)00615-9
• 作为产物：
  描述：

  selenium 、 (Cp*)2Nb(BH4) 以 四氢呋喃 为溶剂， 以85%的产率得到(C5Me5)2Nb(μ2-SeH)
  参考文献：
  名称：

  Metallocenes of Nb and Ta with η2-Se2H, SeH, and Se Ligands – Crystal Structures of [Cp′2Ta(SeH)H2] and [Cp′2Ta(=Se)H·W(CO)5] (Cp′ =tBuC5H4)

  摘要：

  DOI：

  10.1002/(sici)1099-0682(199905)1999:5<843::aid-ejic843>3.0.co;2-y