二氧化铁

二氧化铁
识别
CAS号	12411-15-3 ; 64766-39-8（过氧化物）
性质
化学式	FeO2
摩尔质量	87.84 g·mol−1
外观	固体
	若非注明，所有数据均出自标准状态（25 ℃，100 kPa）下。

二氧化铁是一种无机化合物，化学式为FeO₂，它存在两种异构体，即激发态的过氧化物Fe(O₂)和插入型二氧化物（inserted dioxide）OFe^IVO，后者更稳定。^[1]OFeO和乙烯在固态氩中反应，可以得到配合物(η²-C₂H₄)FeO₂。^[2]

Fe(O₂)可由激光蒸发的铁和一氧化二氮反应得到，反应同时会生成FeO，但不会生成OFeO。^[3]过氧化物Fe^IIO₂也可通过无水FeCl₃和过氧化氢反应得到。^[4]五羰基铁和二氧化氮反应，得到FeO(NO₂)，它受热分解得到FeO₂，研究人员认为它可能是含Fe^III的自由基，或Fe^IV的氧化物。^[5]黄铁矿型FeO₂可由氧化铁和氧气在76 GPa反应，或氢氧化氧铁在92 GPa下分解制得，通过高压反应得到的FeO₂的铁具有+2和+3价。^[6]

单层FeO₂具窄带隙（~0.6 eV），表现出半导体性质，对比FeS₂（~2 eV）为半金属，而FeSe₂和FeTe₂则具有金属性。^[7]

参考文献

^ 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. （原始内容存档于2022-09-03）（英语）.
^ 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 （英语）.
^ 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. （原始内容存档于2018-06-16）（英语）.
^ 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 （英语）.
^ 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. （原始内容存档于2022-06-19）（英语）.
^ 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 （英语）.

拓展阅读

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 （英语）.

[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. （原始内容存档于2022-09-03）（英语）.

[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 （英语）.

[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. （原始内容存档于2018-06-16）（英语）.

[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 （英语）.

[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. （原始内容存档于2022-06-19）（英语）.

[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 （英语）.

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