| 释义 |
Definition of alkene in English: alkenenoun ˈalkiːnˈalˌkēn Chemistry Any of the series of unsaturated hydrocarbons containing a double bond, including ethylene and propene. Alkenes have the general formula: CnH₂n Example sentencesExamples - Among the 4800 constituents of tobacco smoke, researchers have identified more than 100 alkanes, 150 alkenes and 55 alicyclic hydrocarbons.
- Epoxidation, the conversion of an olefin (an unsaturated alkene hydrocarbon) to a cyclic ether through reaction with hydrogen peroxide, a peracid, or oxygen, is an important chemical technique.
- The functional group of an alkene is its carbon-carbon double bond.
- By careful use of appropriate conditions and catalysts alkanes can be converted into other hydrocarbons such as the alkenes and alkynes.
- This is one of the most common ways of synthesizing alkenes, double-bonded hydrocarbons.
Origin Late 19th century: from alkyl + -ene. Definition of alkene in US English: alkenenounˈalˌkēn Chemistry Any of the series of unsaturated hydrocarbons containing a double bond, including ethylene and propylene. Alkenes have the general formula: CnH₂n Example sentencesExamples - The functional group of an alkene is its carbon-carbon double bond.
- By careful use of appropriate conditions and catalysts alkanes can be converted into other hydrocarbons such as the alkenes and alkynes.
- Among the 4800 constituents of tobacco smoke, researchers have identified more than 100 alkanes, 150 alkenes and 55 alicyclic hydrocarbons.
- This is one of the most common ways of synthesizing alkenes, double-bonded hydrocarbons.
- Epoxidation, the conversion of an olefin (an unsaturated alkene hydrocarbon) to a cyclic ether through reaction with hydrogen peroxide, a peracid, or oxygen, is an important chemical technique.
Origin Late 19th century: from alkyl + -ene. |