八碳化鉀

八碳化鉀
別名	KC8; 石墨化鉀; 階段I石墨化鉀
識別
CAS號	12081-88-8
性質
化學式	KC8
莫耳質量	135.18 g·mol⁻¹
外觀	金色
	若非註明，所有數據均出自標準狀態（25 ℃，100 kPa）下。

八碳化鉀是一種石墨層間化合物，化學式為KC₈，最初於1926年被報道。^[2]它可由化學計量比的鉀和石墨的迅速的放熱反應得到，產物為金色固體。^[3]

性質

KC₈具有很高的反應性，接觸空氣可以燃燒，因此需要在氮氣或惰性氣體中操作。^[4]它是一種還原劑，例如，可以將[K(OSi(O^tBu)₃)₃Th(μ-N₃)₃Th(OSi(O^tBu)₃)₃(THF)]中的一個Th-N₃-Th還原為Th=N=Th。^[5]它也能用於製備有機亞錫化合物。^[6]

參考文獻

^ 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. （原始內容存檔於2022-03-20）（英語）.
^ 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. （原始內容存檔於2020-01-29）（英語）.

[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. （原始內容存檔於2022-03-20）（英語）.

[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. （原始內容存檔於2020-01-29）（英語）.

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