二氧化鐵

二氧化鐵
識別
CAS號	12411-15-3 ; 64766-39-8（過氧化物）
性質
化學式	FeO2
摩爾質量	87.84 g·mol−1
外觀	固體
	若非註明，所有數據均出自標準狀態（25 ℃，100 kPa）下。

二氧化鐵是一種無機化合物，化學式為FeO₂，它存在兩種異構體，即激發態的過氧化物Fe(O₂)和插入型二氧化物（inserted dioxide）OFe^IVO，後者更穩定。^[1]OFeO和乙烯在固態氬中反應，可以得到配合物(η²-C₂H₄)FeO₂。^[2]

Fe(O₂)可由激光蒸發的鐵和一氧化二氮反應得到，反應同時會生成FeO，但不會生成OFeO。^[3]過氧化物Fe^IIO₂也可通過無水FeCl₃和過氧化氫反應得到。^[4]五羰基鐵和二氧化氮反應，得到FeO(NO₂)，它受熱分解得到FeO₂，研究人員認為它可能是含Fe^III的自由基，或Fe^IV的氧化物。^[5]黃鐵礦型FeO₂可由氧化鐵和氧氣在76 GPa反應，或氫氧化氧鐵在92 GPa下分解製得，通過高壓反應得到的FeO₂的鐵具有+2和+3價。^[6]

單層FeO₂具窄帶隙（~0.6 eV），表現出半導體性質，對比FeS₂（~2 eV）為半金屬，而FeSe₂和FeTe₂則具有金屬性。^[7]

參考文獻

^ Heather J. Kulik, Nicola Marzari. Transition-metal dioxides: A case for the intersite term in Hubbard-model functionals. The Journal of Chemical Physics. 2011-03-07, 134 (9): 094103 [2022-09-03]. ISSN 0021-9606. doi:10.1063/1.3559452. （原始內容存檔於2022-09-03）（英語）.
^ Mohua Chen, Zhengguo Huang, Mingfei Zhou. Matrix isolation infrared spectroscopic and theoretical study of the transition metal (Mn and Fe) dioxide–ethylene complexes. Chemical Physics Letters. 2004-01, 384 (1-3): 165–170 [2022-09-03]. doi:10.1016/j.cplett.2003.12.002 （英語）.
^ Yasuhiro Yamada, Hirochika Sumino, Yukako Okamura, Hideo Shimasaki, Takeshi Tominaga. Mössbauer studies on laser evaporated iron atoms and their reactions with oxygen in argon matrices. Applied Radiation and Isotopes. 2000-02, 52 (2): 157–164 [2022-09-03]. doi:10.1016/S0969-8043(99)00128-1. （原始內容存檔於2018-06-16）（英語）.
^ Klyuchnikov, N. G.; Gorichev, I. G.; Dukhanin, V. S. Iron peroxide FeO2 compound. Zhurnal Neorganicheskoi Khimii, 1972. 17 (9): 2329-2332.
^ C. C. Addison, B. F. G. Johnson, N. Logan. 830. The vapour-phase reaction of iron pentacarbonyl with nitrogen dioxide; iron(III) oxide nitrate. Journal of the Chemical Society (Resumed). 1965: 4490 [2022-09-03]. ISSN 0368-1769. doi:10.1039/jr9650004490 （英語）.
^ Qingyang Hu, Duck Young Kim, Wenge Yang, Liuxiang Yang, Yue Meng, Li Zhang, Ho-Kwang Mao. FeO2 and FeOOH under deep lower-mantle conditions and Earth’s oxygen–hydrogen cycles. Nature. 2016-06-09, 534 (7606): 241–244 [2022-09-03]. ISSN 0028-0836. doi:10.1038/nature18018. （原始內容存檔於2022-06-19）（英語）.
^ Mu Lan, Gang Xiang, Ya Nie, Dingyu Yang, Xi Zhang. The static and dynamic magnetic properties of monolayer iron dioxide and iron dichalcogenides. RSC Advances. 2016, 6 (38): 31758–31761 [2022-09-03]. ISSN 2046-2069. doi:10.1039/C6RA03480B （英語）.

拓展閱讀

Bo Gyu Jang, Jin Liu, Qingyang Hu, Kristjan Haule, Ho-Kwang Mao, Wendy L. Mao, Duck Young Kim, Ji Hoon Shim. Electronic spin transition in FeO 2 : Evidence for Fe(II) with peroxide O 2 2 −. Physical Review B. 2019-07-15, 100 (1) [2022-09-03]. ISSN 2469-9950. doi:10.1103/PhysRevB.100.014418 （英語）.

[1] Heather J. Kulik, Nicola Marzari. Transition-metal dioxides: A case for the intersite term in Hubbard-model functionals. The Journal of Chemical Physics. 2011-03-07, 134 (9): 094103 [2022-09-03]. ISSN 0021-9606. doi:10.1063/1.3559452. （原始內容存檔於2022-09-03）（英語）.

[2] Mohua Chen, Zhengguo Huang, Mingfei Zhou. Matrix isolation infrared spectroscopic and theoretical study of the transition metal (Mn and Fe) dioxide–ethylene complexes. Chemical Physics Letters. 2004-01, 384 (1-3): 165–170 [2022-09-03]. doi:10.1016/j.cplett.2003.12.002 （英語）.

[3] Yasuhiro Yamada, Hirochika Sumino, Yukako Okamura, Hideo Shimasaki, Takeshi Tominaga. Mössbauer studies on laser evaporated iron atoms and their reactions with oxygen in argon matrices. Applied Radiation and Isotopes. 2000-02, 52 (2): 157–164 [2022-09-03]. doi:10.1016/S0969-8043(99)00128-1. （原始內容存檔於2018-06-16）（英語）.

[4] Klyuchnikov, N. G.; Gorichev, I. G.; Dukhanin, V. S. Iron peroxide FeO2 compound. Zhurnal Neorganicheskoi Khimii, 1972. 17 (9): 2329-2332.

[5] C. C. Addison, B. F. G. Johnson, N. Logan. 830. The vapour-phase reaction of iron pentacarbonyl with nitrogen dioxide; iron(III) oxide nitrate. Journal of the Chemical Society (Resumed). 1965: 4490 [2022-09-03]. ISSN 0368-1769. doi:10.1039/jr9650004490 （英語）.

[6] Qingyang Hu, Duck Young Kim, Wenge Yang, Liuxiang Yang, Yue Meng, Li Zhang, Ho-Kwang Mao. FeO2 and FeOOH under deep lower-mantle conditions and Earth’s oxygen–hydrogen cycles. Nature. 2016-06-09, 534 (7606): 241–244 [2022-09-03]. ISSN 0028-0836. doi:10.1038/nature18018. （原始內容存檔於2022-06-19）（英語）.

[7] Mu Lan, Gang Xiang, Ya Nie, Dingyu Yang, Xi Zhang. The static and dynamic magnetic properties of monolayer iron dioxide and iron dichalcogenides. RSC Advances. 2016, 6 (38): 31758–31761 [2022-09-03]. ISSN 2046-2069. doi:10.1039/C6RA03480B （英語）.

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