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环辛四烯二钾

环辛四烯二钾
IUPAC名
dipotassium cycloocatetraenediide
识别
CAS号 59391-85-4
PubChem 12716830
ChemSpider 57575621
SMILES
 
  • [K+].c1=c[cH-]c=c[cH-]c=c1.[K+]
InChI
 
  • 1/C8H8.2K/c1-2-4-6-8-7-5-3-1;;/h1-8H;;/q-2;2*+1/b2-1-,5-3-,8-6-;;
InChIKey JEUFATMWOKTCQC-YGFQESQOBL
性质
化学式 C8H8K2
外观 褐色固体
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

环辛四烯二钾是一种有机钾化合物,化学式为K2C8H8,有时简写为K2COT。它是棕色固体,可用于合成环辛四烯配合物,如二(环辛四烯)铀(U(C8H8)2)。

制备及结构

[编辑]

环辛四烯二钾可由环辛四烯和金属反应得到:

2 K + C8H8 → K2C8H8

反应经历多烯的双电子还原,伴随着颜色由无色变为棕色。[1]

K2(diglyme)C8H8的结构通过单晶X射线衍射表征,二乙二醇二甲醚与钾离子配位,阴离子C8H8为平面结构,C-C键的平均键长为1.40 Å。[2]

参考文献

[编辑]
  1. ^ A. L Wayda. Cyclooctatetraene Lanthanide Complexes. Lu(C8H8Cl(thf) and Lu(C8H8)[o-C6H4CH2N(CH3)2(thf). Inorganic Syntheses. 1990, 27: 150. doi:10.1002/9780470132586.ch28. 
  2. ^ J. H. Noordik, T. E. M. van den Hark, J. J. Mooij and A. A. K. Klaassen. Dipotassium(I) cyclooctatetraenide-1-methoxy-2-(2-methoxyethoxy)ethane. Acta Crystallogr B. 1974, 30 (30): 833–835. doi:10.1107/S0567740874003840. 
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环辛四烯二钾
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