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  2. Methylene (compound) - Wikipedia

    en.wikipedia.org/wiki/Methylene_(compound)

    The same name (methylidene) was used for the distinct molecule CH 2, also known as carbene. [9] Formerly the methylene name was used for all three isomers (methylene, methylidene, and carbene). Many organic compounds are named and classified as if they were the result of substituting a methylidene group for two adjacent hydrogen atoms of some ...

  3. Carbene - Wikipedia

    en.wikipedia.org/wiki/Carbene

    Methylene is the simplest carbene.. In organic chemistry, a carbene is a molecule containing a neutral carbon atom with a valence of two and two unshared valence electrons.The general formula is R−:C−R' or R=C: where the R represents substituents or hydrogen atoms.

  4. Methylene - Wikipedia

    en.wikipedia.org/wiki/Methylene

    An older name for methylidene (=CH 2), a part of a molecule connected to another atom by a double bond. Methylene (compound) (CH 2 ), an organic compound. See also

  5. List of Latin-script letters - Wikipedia

    en.wikipedia.org/wiki/List_of_Latin-script_letters

    The definition of a Latin-script letter for this list is a character encoded in the Unicode Standard that has a script property of 'Latin' and the general category of 'Letter'. An overview of the distribution of Latin-script letters in Unicode is given in Latin script in Unicode .

  6. Methine group - Wikipedia

    en.wikipedia.org/wiki/Methine_group

    Methine or methylylidene (IUPAC) In organic chemistry, a methine group or methine bridge is a trivalent functional group =CH−, derived formally from methane.It consists of a carbon atom bound by two single bonds and one double bond, where one of the single bonds is to a hydrogen.

  7. Ethylene - Wikipedia

    en.wikipedia.org/wiki/Ethylene

    Ethylene (IUPAC name: ethene) is a hydrocarbon which has the formula C 2 H 4 or H 2 C=CH 2.It is a colourless, flammable gas with a faint "sweet and musky" odour when pure. [7] It is the simplest alkene (a hydrocarbon with carbon–carbon double bonds).

  8. List of typographical symbols and punctuation marks

    en.wikipedia.org/wiki/List_of_typographical...

    (non-Unicode name) ('Scarab' is an informal name for the generic currency sign) § Section sign: section symbol, section mark, double-s, 'silcrow' Pilcrow; Semicolon: Colon ℠ Service mark symbol: Trademark symbol / Slash (non-Unicode name) Division sign, Forward Slash: also known as "stroke" / Solidus (the most common of the slash symbols ...

  9. CH2 - Wikipedia

    en.wikipedia.org/wiki/CH2

    CH2 could refer to: CH2, a postcode district in the CH postcode area; Council House 2, an office building in Melbourne, Australia; CH 2, the molecular formula of several chemical entities: see Methylene (disambiguation)