Alkeny: Introduction and Properties
This page introduces alkenes, a class of unsaturated hydrocarbons characterized by at least one carbon-carbon double bond. The properties of ethene, the simplest alkene, are discussed in detail.
Definition: Alkenes are hydrocarbons containing at least one carbon-carbon double bond.
Właściwości alkenów include:
- Presence of at least one double bond =
- Carbon atoms at the double bond have sp² hybridization
- Colorless and odorless gas
- Insoluble in water
- Accelerates plant vegetation
The page also introduces the concept of cis-trans isomerism in alkenes, using but-2-ene as an example.
Example: Cis-but-2-ene and trans-but-2-ene are geometric isomers of but-2-ene.
Nomenclature rules for alkenes are briefly mentioned, emphasizing that carbon numbering starts to give the double bond the lowest possible number.
Highlight: The simplest alkene, ethene CH2=CH2, is also known as ethylene.