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  2. Methylene group - Wikipedia

    en.wikipedia.org/wiki/Methylene_group

    The hexamethylene diamine molecule contains six methylene groups. A methylene group is any part of a molecule that consists of two hydrogen atoms bound to a carbon atom, which is connected to the remainder of the molecule by two single bonds. [1]

  3. Methylene (compound) - Wikipedia

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

    (The correct prediction of this angle was an early success of ab initio quantum chemistry. [10]) However conversion to a linear configuration requires only 5.5 kcal/mol. [10] The singlet state has a slightly higher energy (by about 9 kcal/mol) than the triplet state, [10] and its H-C-H angle is smaller, about 102°. In dilute mixtures with an ...

  4. 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.

  5. Methylene - Wikipedia

    en.wikipedia.org/wiki/Methylene

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  6. List of saturated fatty acids - Wikipedia

    en.wikipedia.org/wiki/List_of_saturated_fatty_acids

    Common Name Systematic Name Structural Formula Lipid Numbers Propionic acid: Propanoic acid CH 3 CH 2 COOH : C3:0 Butyric acid: Butanoic acid CH 3 (CH 2) 2 COOH : C4:0 Valeric acid

  7. Alkylidene group - Wikipedia

    en.wikipedia.org/wiki/Alkylidene_group

    In organic chemistry, alkylidene is a general term for divalent functional groups of the form R 2 C=, where each R is an alkane or hydrogen. [1] They can be considered the functional group corresponding to mono- or disubstituted divalent carbenes (known as alkylidenes), [2] or as the result of removing two hydrogen atoms from the same carbon atom in an alkane.

  8. 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).

  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 ...