八碳化钾

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
性质
化学式	KC8
摩尔质量	135.18 g·mol⁻¹
外观	金色
	若非注明，所有数据均出自标准状态（25 ℃，100 kPa）下。

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钾和石墨的迅速的放热反应得到，产物为金色固体。^[3]

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(O^tBu)₃)₃Th(μ-N₃)₃Th(OSi(O^tBu)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

^ 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.
^ 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.
^ 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.
^ 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.
^ Fang-Che Hsueh, Luciano Barluzzi, Megan Keener, Thayalan Rajeshkumar, Laurent Maron, Rosario Scopelliti, Marinella Mazzanti. Reactivity of Multimetallic Thorium Nitrides Generated by Reduction of Thorium Azides. 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）.
^ Mitsuo Kira, Shintaro Ishida, Takeaki Iwamoto, Rika Yauchibara, Hideki Sakurai. New synthesis of a stable dialkylstannylene and its reversible complexation with tetrahydrofuran. 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）.

[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. Reactivity of Multimetallic Thorium Nitrides Generated by Reduction of Thorium Azides. 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. New synthesis of a stable dialkylstannylene and its reversible complexation with tetrahydrofuran. 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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