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  2. Structural isomer - Wikipedia

    en.wikipedia.org/wiki/Structural_isomer

    Functional isomers are structural isomers which have different functional groups, resulting in significantly different chemical and physical properties. [ 11 ] An example is the pair propanal H 3 C–CH 2 –C(=O)-H and acetone H 3 C–C(=O)–CH 3 : the first has a –C(=O)H functional group, which makes it an aldehyde , whereas the second has ...

  3. List of straight-chain alkanes - Wikipedia

    en.wikipedia.org/wiki/List_of_straight-chain_alkanes

    Number of isomers [3] [4] Number of isomers including stereoisomers [3] [5] Molecular Formula Name of straight chain Synonyms 1 1 1 CH 4: methane: methyl hydride; natural gas 2 1 1 C 2 H 6: ethane: dimethyl; ethyl hydride; methyl methane 3 1 1 C 3 H 8: propane: dimethyl methane; propyl hydride 4 2 2 C 4 H 10: n-butane: butyl hydride ...

  4. Isomer - Wikipedia

    en.wikipedia.org/wiki/Isomer

    Isomers do not necessarily share similar chemical or physical properties. Two main forms of isomerism are structural (or constitutional) isomerism, in which bonds between the atoms differ; and stereoisomerism or (spatial isomerism), in which the bonds are the same but the relative positions of the atoms differ. Isomeric relationships form a ...

  5. List of isomers of decane - Wikipedia

    en.wikipedia.org/wiki/List_of_isomers_of_decane

    This is the list of the 75 isomers of decane. [1] [2] Straight-chain. n-Decane; Nonane. 2-Methylnonane; 3-3-Methylnonane; 4-Methylnonane; 5-Methylnonane; Octane

  6. Chemical nomenclature - Wikipedia

    en.wikipedia.org/wiki/Chemical_nomenclature

    The IUPAC's rules for naming organic and inorganic compounds are contained in two publications, known as the Blue Book [1] [2] and the Red Book, [3] respectively. A third publication, known as the Green Book , [ 4 ] recommends the use of symbols for physical quantities (in association with the IUPAP ), while a fourth, the Gold Book , [ 5 ...

  7. 3-Methylpentane - Wikipedia

    en.wikipedia.org/wiki/3-Methylpentane

    It is of similar structure to the isomeric 2-methylpentane, which has the methyl group located on the second carbon of the pentane chain. As of early 1990s, it was present in American [ 3 ] and European [ 4 ] gasoline in small amounts, and by 2011 its share in US gas varied between 1.5 and 6% [ 5 ] It has close research and motor octane numbers ...

  8. List of isomers of nonane - Wikipedia

    en.wikipedia.org/wiki/List_of_isomers_of_nonane

    This is the list of structural isomers of nonane. There are 35. [citation needed] Straight-chain ... Isomers where hexane is the longest chain: Trimethyl

  9. E–Z notation - Wikipedia

    en.wikipedia.org/wiki/E–Z_notation

    E–Z configuration, or the E–Z convention, is the IUPAC preferred method of describing the absolute stereochemistry of double bonds in organic chemistry.It is an extension of cis–trans isomer notation (which only describes relative stereochemistry) that can be used to describe double bonds having two, three or four substituents.