二茂鐵鎓

二茂鐵鎓
別名	二茂鐵陽離子; 二茂鐵鹽
識別
CAS號	12125-80-3
PubChem	3081420
性質
化學式	(C5H5)2Fe+
莫耳質量	186.03 g·mol⁻¹
外觀	暗藍色
	若非註明，所有數據均出自標準狀態（25 ℃，100 kPa）下。

二茂鐵鎓，即二(環戊二烯)鐵陽離子，是有機鐵化合物二茂鐵的陽離子形式，化學式為(C₅H₅)₂Fe⁺，它可由二茂鐵的氧化反應製得。它在有機合成中可用作弱路易斯酸或單電子氧化劑。^[1]

常見的鹽


名稱	化學式	CAS號	注釋
六氟磷酸二茂鐵	[Fe(C₅H₅)₂]PF₆	11077-24-0	暗藍色固體
四氟硼酸二茂鐵	[Fe(C₅H₅)₂]BF₄	11077-24-0	暗藍色固體
四[3,5-二(三氟甲基)苯基]硼酸二茂鐵	[Fe(C₅H₅)₂]B[C₆H₃(CF₃)₂]₄	156301-37-0	藍色固體^[2]
四(五氟苯基)硼酸二茂鐵	[Fe(C₅H₅)₂][B(C₆F₅)₄]	135348-57-1	^[3]
四氯合鐵(III)酸二茂鐵	[Fe(C₅H₅)₂][FeCl₄]	1287-09-8	二茂鐵於−40 °C直接氯化得到^[4]
二茂鐵鎓三碘化物	[Fe(C₅H₅)₂]I₃	1291-35-6	黑色，由二茂鐵在50 °C乙醇中和碘反應得到^[5]
二茂鐵鎓三溴化物	[Fe(C₅H₅)₂]Br₃	12146-18-8	藍綠色固體，由二茂鐵在−30 °C溴化得到，20 °C分解^[5]
三氟甲磺酸二茂鐵	[Fe(C₅H₅)₂]CF₃SO₃	86728-83-8
高氯酸二茂鐵	[Fe(C₅H₅)₂]ClO₄	12312-33-3
二茂鐵苦味酸鹽	[Fe(C₅H₅)₂]C₆H₂N₃O₇	11077-21-7	暗綠色固體^[6]

參考文獻

^ ^1.0 ^1.1 Šebesta, Radovan; Toma, Štefan. Applications of Ferrocenium Salts in Organic Synthesis. Synthesis. 2015, 47 (12): 1683–1695. ISSN 0039-7881. doi:10.1055/s-0034-1379920.
^ Ivonne Chávez, Angel Alvarez-Carena, Elies Molins*, Anna Roig, Waldemar Maniukiewicz, Alenjandra Arancibia, Verónica Arancibia, Holger Brand, Juan Manuel Manrı́quez*. Selective oxidants for organometallic compounds containing a stabilising anion of highly reactive cations: (3,5(CF3)2C6H3)4B−)Cp2Fe+ and (3,5(CF3)2C6H3)4B−)Cp*2Fe+. Journal of Organometallic Chemistry. 2000-04, 601 (1): 126–132 [2021-07-29]. doi:10.1016/S0022-328X(00)00044-9. （原始內容存檔於2020-02-11）（英語）.
^ Firoz Shah Tuglak Khan, Amy L. Waldbusser, Maria C. Carrasco, Hadi Pourhadi, Shabnam Hematian. Synthetic, spectroscopic, structural, and electrochemical investigations of ferricenium derivatives with weakly coordinating anions: ion pairing, substituent, and solvent effects. Dalton Transactions. 2021, 50 (21): 7433–7455 [2021-07-29]. ISSN 1477-9226. doi:10.1039/D1DT01192H （英語）.
^ Leonard P. Motz, Robert P. Pinnell. The reaction of ferrocene with trichloromethane-sulfonyl chloride. Journal of Organometallic Chemistry. 1973-06, 54: 255–258 [2021-07-29]. doi:10.1016/S0022-328X(00)85016-0. （原始內容存檔於2018-06-25）（英語）.
^ ^5.0 ^5.1 Nesmeyanov, A. N.; Yur'eva, L. P.; Materikova, R. B.; Hetnarski, Bogumil. Stability of some ferricinium salts（俄文）. Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1965. 4: 731-733.
^ D. W. Johnson, G. W. Rayner-Canham. Ferricinium picrate. Preparation of a ferrocene derivative. Journal of Chemical Education. 1972-03, 49 (3): 211 [2021-07-29]. ISSN 0021-9584. doi:10.1021/ed049p211 （英語）.

[Radovan-1] 1.0 ^1.1 Šebesta, Radovan; Toma, Štefan. Applications of Ferrocenium Salts in Organic Synthesis. Synthesis. 2015, 47 (12): 1683–1695. ISSN 0039-7881. doi:10.1055/s-0034-1379920.

[2] Ivonne Chávez, Angel Alvarez-Carena, Elies Molins*, Anna Roig, Waldemar Maniukiewicz, Alenjandra Arancibia, Verónica Arancibia, Holger Brand, Juan Manuel Manrı́quez*. Selective oxidants for organometallic compounds containing a stabilising anion of highly reactive cations: (3,5(CF3)2C6H3)4B−)Cp2Fe+ and (3,5(CF3)2C6H3)4B−)Cp*2Fe+. Journal of Organometallic Chemistry. 2000-04, 601 (1): 126–132 [2021-07-29]. doi:10.1016/S0022-328X(00)00044-9. （原始內容存檔於2020-02-11）（英語）.

[3] Firoz Shah Tuglak Khan, Amy L. Waldbusser, Maria C. Carrasco, Hadi Pourhadi, Shabnam Hematian. Synthetic, spectroscopic, structural, and electrochemical investigations of ferricenium derivatives with weakly coordinating anions: ion pairing, substituent, and solvent effects. Dalton Transactions. 2021, 50 (21): 7433–7455 [2021-07-29]. ISSN 1477-9226. doi:10.1039/D1DT01192H （英語）.

[4] Leonard P. Motz, Robert P. Pinnell. The reaction of ferrocene with trichloromethane-sulfonyl chloride. Journal of Organometallic Chemistry. 1973-06, 54: 255–258 [2021-07-29]. doi:10.1016/S0022-328X(00)85016-0. （原始內容存檔於2018-06-25）（英語）.

[AN-5] 5.0 ^5.1 Nesmeyanov, A. N.; Yur'eva, L. P.; Materikova, R. B.; Hetnarski, Bogumil. Stability of some ferricinium salts（俄文）. Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1965. 4: 731-733.

[6] D. W. Johnson, G. W. Rayner-Canham. Ferricinium picrate. Preparation of a ferrocene derivative. Journal of Chemical Education. 1972-03, 49 (3): 211 [2021-07-29]. ISSN 0021-9584. doi:10.1021/ed049p211 （英語）.

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