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  2. Radical (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Radical_(chemistry)

    Radical elimination can be viewed as the reverse of radical addition. In radical elimination, an unstable radical compound breaks down into a spin-paired molecule and a new radical compound. Shown below is an example of a radical elimination reaction, where a benzoyloxy radical breaks down into a phenyl radical and a carbon dioxide molecule. [7]

  3. Radical anion - Wikipedia

    en.wikipedia.org/wiki/Radical_anion

    In organic chemistry, a radical anion is a free radical species [1] that carries a negative charge. Radical anions are encountered in organic chemistry as reduced derivatives of polycyclic aromatic compounds, e.g. sodium naphthenide. An example of a non-carbon radical anion is the superoxide anion, formed by transfer of one electron to an ...

  4. Hydroxyl radical - Wikipedia

    en.wikipedia.org/wiki/Hydroxyl_radical

    Most notably hydroxyl radicals are produced from the decomposition of hydroperoxides (ROOH) or, in atmospheric chemistry, by the reaction of excited atomic oxygen with water. It is also an important radical formed in radiation chemistry, since it leads to the formation of hydrogen peroxide and oxygen , which can enhance corrosion and stress ...

  5. Reaction intermediate - Wikipedia

    en.wikipedia.org/wiki/Reaction_intermediate

    The formed product, a carbon radical, can react with non-radical molecule to continue propagation or react with another radical to form a new stable molecule such as a longer carbon chain or an alkyl halide. [4] The example below of methane chlorination shows a multi-step reaction involving radicals.

  6. Chemical symbol - Wikipedia

    en.wikipedia.org/wiki/Chemical_symbol

    Chemical symbols are the abbreviations used in chemistry, mainly for chemical elements; but also for functional groups, chemical compounds, and other entities. Element symbols for chemical elements, also known as atomic symbols , normally consist of one or two letters from the Latin alphabet and are written with the first letter capitalised.

  7. Hydroxy group - Wikipedia

    en.wikipedia.org/wiki/Hydroxy_group

    In chemistry, a hydroxy or hydroxyl group is a functional group with the chemical formula −OH and composed of one oxygen atom covalently bonded to one hydrogen atom. In organic chemistry , alcohols and carboxylic acids contain one or more hydroxy groups.

  8. Chemical species - Wikipedia

    en.wikipedia.org/wiki/Chemical_species

    The sodium ion is an example of a cationic species and its formula is Na +. Species with an overall negative charge will be an anionic species. Chloride is an anionic species, and its formula is Cl −. [7] Radical species: Molecules or atoms with unpaired electrons. Triarlborane anion is a radical species and its formula is Ar3B − [8] [9]

  9. Category:Free radicals - Wikipedia

    en.wikipedia.org/wiki/Category:Free_radicals

    Download as PDF; Printable version; ... Pages in category "Free radicals" ... Free radical; Radical (chemistry) * Disposable soma theory of aging; Free-radical theory ...