八碳化钾

八碳化钾是一种石墨层间化合物,化学式为KC8,最初于1926年被报道。[2]它可由化学计量比的石墨的迅速的放热反应得到,产物为金色固体。[3]

八碳化钾
别名 KC8
石墨化钾
阶段I石墨化钾
识别
CAS号 12081-88-8  checkY
性质
化学式 KC8
135.18 g·mol¹
外观 金色[1]
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

性质

KC8具有很高的反应性,接触空气可以燃烧,因此需要在氮气或惰性气体中操作。[4]它是一种还原剂,例如,可以将[K(OSi(OtBu)3)3Th(μ-N3)3Th(OSi(OtBu)3)3(THF)]中的一个Th-N3-Th还原为Th=N=Th。[5]它也能用于制备有机亚锡化合物。[6]

参考文献

  1. Ichikawa, Masaru; Inoue, Yukio; Tamaru, Kenzi. Catalytic hydrogenation of benzene by graphite-potassium lamellar compounds C8K and C24K. Journal of the Chemical Society, Chemical Communications (1972), (16), 928-929. doi:10.1039/C39720000928.
  2. Karl Fredenhagen, Gustav Cadenbach: Die Bindung von Kalium durch Kohlenstoff. In: Zeitschrift für anorganische und allgemeine Chemie. Band 158, Nr. 1, 23. November 1926, S. 249–263, doi:10.1002/zaac.19261580122.
  3. D. M. Ottmers, H. F. Rase: Potassium graphites prepared by mixed-reaction technique. In: Carbon. Band 4, Nr. 1, Mai 1966, ISSN 0008-6223, S. 125–127, doi:10.1016/0008-6223(66)90017-0.
  4. H. Podall, W. E. Foster, A. P. Giraitis: Catalytic Graphite Inclusion Compounds. I. Potassium Graphite as a Polymerization Catalyst. In: The Journal of Organic Chemistry. Band 23, Nr. 1, Januar 1958, S. 82–85, doi:10.1021/jo01095a025.
  5. Fang-Che Hsueh, Luciano Barluzzi, Megan Keener, Thayalan Rajeshkumar, Laurent Maron, Rosario Scopelliti, Marinella Mazzanti. . Journal of the American Chemical Society. 2022-02-23, 144 (7): 3222–3232 [2022-05-24]. ISSN 0002-7863. doi:10.1021/jacs.1c13150. (原始内容存档于2022-03-20) (英语).
  6. Mitsuo Kira, Shintaro Ishida, Takeaki Iwamoto, Rika Yauchibara, Hideki Sakurai. . Journal of Organometallic Chemistry. 2001-11, 636 (1-2): 144–147 [2022-05-24]. doi:10.1016/S0022-328X(01)00998-6. (原始内容存档于2020-01-29) (英语).
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