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| Names | |||
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| Preferred IUPAC name Ethanimine | |||
| Other names As imine: ethylimine, ethylideneimine, ethylidenimine, acetaldehyde imine, acetaldehyde-ammonia Schiff base, acetaldimine, iminoethane As amine: ethenamine, ethyleneamine, ethylideneamine, aminoethylene, vinylamine, vinyl amine | |||
| Identifiers | |||
3D model (JSmol) | |||
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| Properties | |||
| C2H5N | |||
| Molar mass | 43.069 g·mol−1 | ||
| Related compounds | |||
Related compounds | N-Methylmethanimine Methanimine | ||
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa). | |||
Ethanimine is an organonitrogencompound classified as animine. It is formed by reacting acetaldehyde and ammonia, but rapidly polymerizes toacetaldehyde ammonia trimer.
It has twotautomers: ethanimine, an imine, and ethenamine or aminoethylene, anamine. Ethanimine has two hydrogens on the carbon, while ethenamine has two on the nitrogen atom.
It is not well known terrestrially, but has been detected in abundance towardSagittarius B2 (Sgr B2), a dense interstellar cloud between stars toward theGalactic Center of theMilky Way. The distance between the Sgr B2 cloud and center of galaxy is 100 pc (1 pc = 3.26 ly). Ethanimine is mainly found in hot cores of ISM clouds; in case of Sgr B2, the region would be the Sgr B2 N and Sgr B2 M.[1] Radio telescopes such as theGreen Bank Observatory'sGreen Bank Telescope and those operated by theNational Radio Astronomy Observatory (measuring radio frequency light lambda ranging from 1–300 GHz) are able to detect organic molecules such as ethanimines because its internalenergy transition, more specifically the rotational transition is within the radio frequency of 14085 MHz = 140.8 GHz.[2]
