-ene

Suffix used in organic chemistryThe suffix -ene is used in organic chemistry to form names of organic compounds where the -C=C- group has been attributed the highest priority according to the rules of organic nomenclature. The Commission on the Nomenclature of Organic Chemistry Nomenclature of Organic Chemistry (A: Hydrocarbons, and B: Fundamental Heterocyclic Systems), 1965 (C: Characteristic Groups) 1971 3 Butterworths London 1958 0-408-70144-7 Sometimes a number between hyphens is inserted before it to say that the double bond is between that atom and the atom with the next number up. This suffix is taken from the end of the word ethylene, which is the simplest alkene.Acetylene (and Hydrocarbon Suffixes) https://chemtymology.co.uk/2019/06/03/acetylene-and-hydrocarbon-suffixes/ chemtymology.co.uk 7 June 2026 The final "-e" disappears if it is followed by a suffix that starts with a vowel, e.g. "-enal" which is a compound that contains both a -C=C- bond and an aldehyde functional group. If the other suffix starts with a consonant or "y", the final "-e" remains, e.g. "-enediyne" (which has the "-ene" suffix and also the "-yne" suffix, for a compound with a double bond and two triple bonds.)A. Favre Henri H. Powell Warren Nomenclature of Organic Chemistry. IUPAC Recommendations and Preferred Names 2013 https://iupac.qmul.ac.uk/BlueBook/PDF/BlueBookV2.pdf International Union of Pure and Applied Chemistry 1160 iupac.qmul.ac.uk A Greek number prefix before the "-ene" indicates how many double bonds there are in the compound, e.g. butadiene.2013-10-02 Nomenclature of Alkenes https://chem.libretexts.org/Bookshelves/Organic_Chemistry/Supplemental_Modules_(Organic_Chemistry)/Alkenes/Naming_the_Alkenes 2026-10-11 Chemistry LibreTexts en Stereochemistry Since alkenes containing two different groups on each side of the -C=C- double bond can exhibit geometric isomerism, alkenes often contain the prefixes "cis-" and "trans-", or more formally, "(E)-" and "(Z)-."Alkenes: Structure and Nomenclature https://colapret.cm.utexas.edu/courses/Chap5.pdf colapret.cm.utexas.edu 7 June 2026 Inorganic Chemistry The suffix "-ene" is also used in inorganic chemistry to indicate a one-atom thick two-dimensional layer of atoms—known as a "Xene"—as in graphene, silicene, stanene, borophene, and germanene. Xie Zhongjian Meng Xiangying Li Xiangnan Liang Weiyuan Huang Weichun Chen Keqiang Chen Jianming Xing Chenyang et al 15 June 2020 Two-Dimensional Borophene: Properties, Fabrication, and Promising Applications Research 2020 2624617 10.34133/2020/2624617 32607497 7312787 https://pmc.ncbi.nlm.nih.gov/articles/PMC7312787/ 6 June 2026 Additionally, the suffix is used for MXenes due to their similarity to graphene.Salim O. Mahmoud K.A. Pant K.K. Joshi R.K. Introduction to MXenes: synthesis and characteristics Materials Today Chemistry December 2019 14 10.1016/j.mtchem.2019.08.010 https://www.sciencedirect.com/science/article/abs/pii/S2468519419302034 7 June 2026 subscription References See also IUPAC nomenclature of organic chemistry ene