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单词 alkyne
释义

Definition of alkyne in English:

alkyne

noun ˈalkʌɪnˈalkīn
Chemistry
  • Any of the series of unsaturated hydrocarbons containing a triple bond, including acetylene.

    〔化〕炔

    Alkynes have the general formula: CnH₂n₋₂

    Example sentencesExamples
    • Alkanes (sometimes called paraffins) have only single bonds, while alkenes (sometimes called olefins) have a carbon-carbon double bond, and alkynes have a carbon-carbon triple bond.
    • By careful use of appropriate conditions and catalysts alkanes can be converted into other hydrocarbons such as the alkenes and alkynes.
    • The first step is the addition of the proton to the pi bond of the alkene or alkyne, acting as the electron source.
    • Originally the alkynes were called the acetylenes.
    • The alkyne functional group is the carbon-carbon triple bond.

Origin

Early 20th century: from alkyl + -yne.

Definition of alkyne in US English:

alkyne

nounˈalkīn
Chemistry
  • Any of the series of unsaturated hydrocarbons containing a triple bond, including acetylene.

    〔化〕炔

    Alkynes have the general formula: CnH₂n₋₂

    Example sentencesExamples
    • The first step is the addition of the proton to the pi bond of the alkene or alkyne, acting as the electron source.
    • Alkanes (sometimes called paraffins) have only single bonds, while alkenes (sometimes called olefins) have a carbon-carbon double bond, and alkynes have a carbon-carbon triple bond.
    • By careful use of appropriate conditions and catalysts alkanes can be converted into other hydrocarbons such as the alkenes and alkynes.
    • The alkyne functional group is the carbon-carbon triple bond.
    • Originally the alkynes were called the acetylenes.

Origin

Early 20th century: from alkyl + -yne.

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更新时间:2025/6/19 21:16:42