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环戊二烯基三羰基钨二聚体

环戊二烯基三羰基钨二聚体
IUPAC名
bis(tricarbonyl[η5-cyclopentadienyl]tungsten)(WW)
别名 二(环戊二烯基三羰基钨)
三羰基茂基钨二聚体
三羰基环戊二烯基钨二聚体
识别
CAS号 12566-66-4  checkY
PubChem 45051817
ChemSpider 10159961
SMILES
 
  • [C-]#[O+].[C-]#[O+].[C-]#[O+].[C-]#[O+].[C-]#[O+].[C-]#[O+].[CH]1[CH][CH][CH][CH]1.[CH]1[CH][CH][CH][CH]1.[W].[W]
性质
化学式 C16H10O6W2
摩尔质量 665.93 g·mol−1
外观 红色固体
密度 2.738 g/cm3
熔点 238—240 °C(511—513 K)[1]
溶解性 难溶
危险性
主要危害 可燃
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

环戊二烯基三羰基钨二聚体是一种有机钨化合物,化学式为Cp2W2(CO)6,其中Cp为C5H5。它是暗红色的晶体,主要用于学术研究。

结构及性质

该化合物存在两个构象异构体,gauche和anti构象。[2]其六个羰基为端基配体,W-W键键长为3.222 Å。[3]它可由六羰基钨环戊二烯基钠反应,得到NaW(CO)3(C5H5)后经过氧化制得。[4]

参考文献

  1. ^ Dafa Chen, Jian Guo, Shansheng Xu, Haibin Song, Baiquan Wang. Reactions of SiH-Functionalized Cyclopentadienes with Metal Carbonyls. Organometallics. 2007-08, 26 (17): 4212–4219 [2019-10-19]. ISSN 0276-7333. doi:10.1021/om070204p (英语). 
  2. ^ Brian Mann. Fluxionality of Cp2Mo2(CO)6. University of Sheffield. 1997-01-06 [2019-10-17]. (原始内容存档于2011-08-12). 
  3. ^ R. D. Adams, D. M. Collins, and F. A. Cotton. Molecular Structures and Barriers to Internal Rotation in Bis(η5 -cyclopentadienyl)hexacarbonylditungsten and Its Molybdenum Analog. Inorg. Chem. 1974, 13 (5): 1086–1090. doi:10.1021/ic50135a015. 
  4. ^ Manning, A. R.; Hacket, Paul; Birdwhistell, Ralph. Hexacarbonylbis(η5‐Cyclopentadienyl)Dichromium, Molybdenum, and Tungsten and their Analogs, M25‐C5H4R)2(CO)6 (M = Cr, Mo, and W; R = H, Me or PhCH2). Inorganic Syntheses. 1990, 28: 148–149. doi:10.1002/9780470132593.ch39. 
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