12.5: Alkenes and Alkynes - Chemistry LibreTexts
2023年4月13日 · Alkenes and alkynes are two different classes of unsaturated hydrocarbons. An alkene has one or more carbon-carbon double bonds, while an alkyne has one or more carbon-carbon triple bonds. The fewest carbon atoms possible in either an alkene or alkyne is two.
Alkenes and Alkynes – Introductory Chemistry
Alkene and alkyne compounds are named by identifying the longest carbon chain that contains both carbons of the double or triple bond. This longest chain is named by the alkane series convention: “eth-” for two carbons; “prop-” for three carbons; “but-” for four carbons; etc.
Alkenes and Alkynes - Khan Academy
Learn about the nomenclature and reactions of alkenes and alkynes as starting materials in organic chemistry.
Chapter 5: Alkenes and Alkynes – OCLUE: Organic Chemistry ...
Alkenes and alkynes. Both alkenes and alkynes are “unsaturated,” which means that they contain double or triple carbon-carbon bonds. The term unsaturated comes from the fact that more H atoms can be added to these molecules across the double or triple bonds.
25.4: Alkenes and Alkynes - Chemistry LibreTexts
An alkyne is a hydrocarbon with one or more carbon-carbon triple covalent bonds. An unsaturated hydrocarbon is a hydrocarbon that contains less than the maximum number of hydrogen atoms that can possibly bond with the number of carbon atoms present. Structures of …
26.5: Alkenes and Alkynes - Chemistry LibreTexts
2023年7月12日 · As noed before, alkenes are hydrocarbons with carbon-to-carbon double bonds (R 2 C=CR 2) and alkynes are hydrocarbons with carbon-to-carbon triple bonds (R–C≡C–R). Collectively, they are called unsaturated hydrocarbons because they have fewer hydrogen atoms than does an alkane with the same number of carbon atoms, as is indicated in the ...
22.1 Alkenes and Alkynes – Structure and Naming
Hydrocarbon molecules with one or more triple bonds are called alkynes; they make up another series of unsaturated hydrocarbons. Two carbon atoms joined by a triple bond have bond angles of 180°, giving these types of bonds a linear shape. The simplest member of the alkyne series is ethyne, C 2 H 2, commonly called acetylene as shown in Figure ...