Ethenium
Sign in to savethumb|200px|right|Ethenium () In chemistry, ethenium, protonated ethylene or ethyl cation is a positive ion with the formula . It can be viewed as a molecule of ethylene () with one added proton (), or a molecule of ethane () minus one hydride ion (). It is a carbocation; more specifically, a nonclassical carbocation.
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Article
4 sectionsContents
- Preparation
- Stability and reactions
- Structure
- References
thumb|200px|right|Ethenium () In chemistry, ethenium, protonated ethylene or ethyl cation is a positive ion with the formula . It can be viewed as a molecule of ethylene () with one added proton (), or a molecule of ethane () minus one hydride ion (). It is a carbocation; more specifically, a nonclassical carbocation.
==Preparation== Ethenium has been observed in rarefied gases subjected to radiation. Another preparation method is to react certain proton donors such as trihydrogen cation|, helium hydride ion|, diazenylium|, and with ethane at ambient temperature and pressures below 1 mmHg. (Other donors such as methanium| and form ethanium preferably to ethenium.)