Difluoramine
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3D model (JSmol)
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PubChem CID
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CompTox Dashboard (EPA)
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| F2HN | |
| Molar mass | 53.012 g·mol−1 |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Difluoroamine (also called fluorimide or difluoramine) is an inorganic compound with the chemical formula NHF2. It consists of an ammonia molecule on which two of the hydrogen atoms have been substituted by fluorine atoms, and is thus the fluorine analog of dichloramine.
Synthesis
[edit]Difluoramine can be made by hydrolising N,N-difluorourea.[1]
- CH4N2O + 2 F2 → CH2F2N2O + 2 HF
- CH2F2N2O + 2 HF + H2O → HNF2 + CO2 + NH4F•HF
It may also be produced in the reaction of tetrafluorohydrazine and thiophenol.[2]
- N2F4 + 2 C6H5SH → 2 NHF2 + C6H5SSC6H5
It is produced in small amounts as a by product when nitrogen trifluoride is reduced by arsenic. Also it is a byproduct in the fluorination of urea.[3] Small amounts are produced when ammonium hydrogen difluoride is electrolysed.[2]
References
[edit]- ^ Inorganic Syntheses. John Wiley & Sons. 22 September 2009. p. 307. ISBN 978-0-470-13278-4.
- ^ a b Holleman, Arnold F.; Nils, Wiberg (2019). Lehrbuch der anorganischen Chemie (91.–100. Aufl. Reprint 2019 ed.). Berlin Boston: De Gruyter. pp. 571–576. ISBN 978-3110075113.
- ^ Lawton, Emil A.; Weber, John Q. (September 1959). "The Direct Fluorination af Urea: The Synthesis and Properties Of Difluoramine". Journal of the American Chemical Society. 81 (17): 4755. Bibcode:1959JAChS..81.4755L. doi:10.1021/ja01526a087.
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