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词汇 carbanion
释义

Definition of carbanion in English:

carbanion

noun kɑːˈbanʌɪən-ˌīˌän
Chemistry
  • An organic anion in which the negative charge is located on a carbon atom.

    〔化〕负碳离子,阴碳离子

    Example sentencesExamples
    • They react with water and alcohols in what are essentially acid-base reactions, as if they contained a carbanion; they will also remove protons that are much less acidic than those of water and alcohols.
    • Two important examples of stable carbanions are the cyanide anion (NC -) and the metalocenes.
    • As a result, carbonyl compounds can form carbon anions (carbanions) and act as nucleophiles rather than electrophiles.
    • The key central intermediate is the carbanion formed as a result of CO2 loss from KP.
    • The key intermediates would be a benzylic carbanion, a benzylic radical and a hydroperoxy radical arising from via oxygen trapping.

Definition of carbanion in US English:

carbanion

noun-ˌīˌän
Chemistry
  • An organic anion in which the negative charge is located on a carbon atom.

    〔化〕负碳离子,阴碳离子

    Example sentencesExamples
    • As a result, carbonyl compounds can form carbon anions (carbanions) and act as nucleophiles rather than electrophiles.
    • The key intermediates would be a benzylic carbanion, a benzylic radical and a hydroperoxy radical arising from via oxygen trapping.
    • The key central intermediate is the carbanion formed as a result of CO2 loss from KP.
    • Two important examples of stable carbanions are the cyanide anion (NC -) and the metalocenes.
    • They react with water and alcohols in what are essentially acid-base reactions, as if they contained a carbanion; they will also remove protons that are much less acidic than those of water and alcohols.
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