Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
Chemical compound
In organic chemistry, methenium (also called methylium, carbenium,[2]methyl cation, or protonated methylene) is a cation with the formula CH+ 3. It can be viewed as a methylene radical (:CH 2) with an added proton (H+ ), or as a methyl radical (•CH 3) with one electron removed. It is a carbocation and an enium ion, making it the simplest of the carbenium ions.[3]
^International Union of Pure and Applied Chemistry (2014). Nomenclature of Organic Chemistry: IUPAC Recommendations and Preferred Names 2013. The Royal Society of Chemistry. p. 1089. doi:10.1039/9781849733069. ISBN 978-0-85404-182-4.
^"Ions, Free Radicals, and Radical-Ion", Nomenclature of Organic Compounds, Advances in Chemistry, vol. 126, AMERICAN CHEMICAL SOCIETY, June 1974, pp. 216–224, doi:10.1021/ba-1974-0126.ch028, ISBN 978-0841201910
^Cite error: The named reference Golob was invoked but never defined (see the help page).
In organic chemistry, methenium (also called methylium, carbenium, methyl cation, or protonated methylene) is a cation with the formula CH+ 3. It can...
CH3 may refer to: Channel 3 (band) Channel 3 (Thai television network) Methenium (methyl cation) Methyl group (in chemistry) Methyl radical (in chemistry)...
mostly as unstable species in low-pressure gas mixtures. These include methenium or methyl cation CH+3, methane cation CH+4, and methanium or protonated...
a positively charged carbon atom. Among the simplest examples are the methenium CH+ 3, methanium CH+ 5 and vinyl C 2H+ 3 cations. Occasionally, carbocations...
34–46. Bibcode:2017CPL...672...34S. doi:10.1016/j.cplett.2017.01.045. Methenium Ammonium Ethanium Chemistry, International Union of Pure and Applied (2009)...
quite corrosive to metals. Its first ionization potential (yielding the methenium ion, CH+ 3) is 9.837±0.005 eV. The carbon centre in methyl can bond with...
radical species. For example, the methanol radical cation fragments into a methenium cation CH3+ and a hydroxyl radical. In naphthalene the unfragmented radical...
or 3. (Ions with zero carbons attached to the ionized carbon, such as methenium, CH+ 3, are usually included in the primary class). Stability typically...
adults during a Phase 2 trial. Astronomers detect, for the first time, methenium, CH3+ (and/or carbon cation, C+), basic ingredients of life as we know...
fluorine atoms as substituents in place of its hydrogen atoms. Compared to methenium (the simplest carbenium ion), trifluoromethyl cation is more stable due...
pressure (about 2 mmHg). The electron beam first creates methanium and methenium ions. The former rapidly transfer their proton to ethane: CH+ 5 + C 2H...
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