[η5-MeO2CC5H4Cr(CO)3]2 | 116446-86-7

• 英文名称: [η5-MeO2CC5H4Cr(CO)3]2
• CAS: 116446-86-7
• 化学式: C₂₀H₁₄Cr₂O₁₀
• 分子量: 518.317
• InChiKey: ZAJJPKZESRODAW-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：
  None
• 氢给体数：
  None
• 氢受体数：
  None

反应信息

• 作为反应物：
  描述：

  环八硒 、 [η5-MeO2CC5H4Cr(CO)3]2 以 四氢呋喃 为溶剂， 以99%的产率得到[η5-MeO2CC5H4Cr(CO)2]2Se
  参考文献：
  名称：

  金属环戊二烯基配合物功能化的基本策略：包含功能取代的环戊二烯基配体的直链，蝶形和立方铬/硒配合物的合成，表征和反应性

  摘要：

  含有功能性取代的Cp配体的线性，蝶形和立方Cr / Se络合物的第一个实例已通过预官能化的Cp金属前体的骨架和功能转化成功合成。例如，（i）所述预官能化的Cp金属前体[η 5 -RC 5 H ^ 4的Cr（CO）3 ] 2（1，R =梅科; 2，R =的MeO 2 C）与元素硒的给定条件下反应，以得到线性配合物[η 5 -RC 5 H ^ 4的Cr（CO）2 ] 2硒（3，R =梅科; 4，R =的MeO 2 C），蝴蝶配合物[η 5 -RC 5 H ^ 4的Cr（CO）2 ] 2硒2（5，R =梅科; 6，R =的MeO 2 C），和立方烷簇（η 5 - RC 5 ħ 4）4的Cr 4硒4（7，R =梅科; 8，R =的MeO 2 C），而线性络合物3 / 4与适当的条件下元素硒以产生蝴蝶络合物反应5/ 6或立方烷簇7 / 8 ; （ii）蝶形配合物5或6的THF溶液的热解产生了古巴簇7

  DOI：

  10.1021/om034283q

文献信息

• Synthesis and Characterization of Cubane‐Like Cr ₄ E ₄ (E = S, Se) Clusters − Molecular Structures of (η ⁵ ‐RC ₅ H ₄ ) ₄ Cr ₄ E ₄ (E = S, R = MeCO, MeO ₂ C, EtO ₂ C; E = Se, R = H)
  作者：Li‐Cheng Song、Hua‐Wei Cheng、Xin Chen、Qing‐Mei Hu

  DOI：10.1002/ejic.200400088

  日期：2004.8

  AbstractTreatment of the Cr−Cr singly‐bonded dimers [η5‐RC5H4Cr(CO)3]2 (1, R = MeCO; 2, R = MeO2C; 3, R = EtO2C) with excess sulfur in refluxing THF gave the cubane Cr4S4 clusters (η5‐RC5H4)4Cr4S4 (4, R = MeCO; 5, R = MeO2C; 6, R = EtO2C). The cubane Cr4S4 cluster 4 reacted with excess 2,4‐dinitrophenylhydrazine to produce the hydrazone derivative [η5−2,4‐(NO2)2C6H3NHN=C(Me)C5H4]4Cr4S4 (7). The singly‐bonded dimers of [η5‐RC5H4Cr(CO)3]2 (8, R = Me; 9, R = EtO2C), in the presence of excess selenium, reacted similarly to the linear Cr2Se complexes [η5‐RC5H4Cr(CO)2]2Se (10, R = Me; 11, R = EtO2C), which reacted with an equimolar quantity of selenium to afford the cubane Cr4Se4 clusters (η5‐RC5H4)4Cr4Se4 (12, R = Me; 13, R = EtO2C). A particularly interesting phenomenon is the cross‐assembled reaction of the linear Cr2Se complexes [η5‐MeC(O)C5H4Cr(CO)2]2Se (14) and [CpCr(CO)2]2Se (15) in the presence of excess selenium in THF that gave rise to a series of cubane Cr4Se4 clusters [η5‐MeC(O)C5H4]nCp4−nCr4Se4 (16, n = 0; 17, n = 1; 18, n = 2; 19, n = 3; 20, n = 4). The possible pathway for the cross‐assembled reaction is suggested. Furthermore the new clusters were characterized by elemental analysis and spectroscopy, and in the case of 4−6 and 16 also by X‐ray diffraction techniques. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)