alkyne

Thân thiện

A chemist uses an alkyne gas in a laboratory experiment.

Definition

Noun: A type of hydrocarbon containing at least one carbon-carbon triple bond in its molecular structure. Alkynes are unsaturated compounds with the general formula CₙH₂ₙ₋₂. The simplest and most important alkyne is acetylene.

Usage

Alkynes are primarily discussed in the context of organic chemistry. The word is used as a countable noun to refer to this specific class of chemical compounds. * Acetylene is the most common alkyne. * The triple bond in an alkyne is highly reactive. * Chemists study the properties and reactions of alkynes.

Examples

• The laboratory synthesis involved a series of alkynes as intermediates.
• Alkynes can undergo addition reactions with halogens.
• The distinguishing feature of an alkyne is its carbon-carbon triple bond.

Advanced Usage

• Terminal alkyne: An alkyne where the triple bond is at the end of the carbon chain (e.g., propyne, HC≡C-CH₃).
• Internal alkyne: An alkyne where the triple bond is between two carbon atoms that are not terminal (e.g., 2-butyne, CH₃-C≡C-CH₃).

Variants and Related Words

• Alkynyl (adjective): Pertaining to or derived from an alkyne by removal of a hydrogen atom. Example:
• Acetylene (noun): The common name for the simplest alkyne, C₂H₂ (systematic name: ethyne).

Synonyms

• Acetylene series (historical/less common term)
• Alkyne hydrocarbon

Different Meanings

The word "alkyne" has a single, specific meaning in scientific terminology (organic chemistry) and is not used in other contexts.

Học thuật

Noun

1. a colorless flammable gas used chiefly in welding and in organic synthesis

Từ đồng nghĩa

• acetylene
• ethyne