=Double & Triple bonds of Carbon
When multiple bonds form, fewer H are attracted to C atom
The position of double/triple bond always have the lowest # put in front of the parent chain
Alkenes:
Definition: simple hydrocarbon with one or more double bonds
CH2=CH2 Ethene
CH2=CH-CH3 Propene
Geometric isomers:
Trans: opposite corner
Cis: both top or bottom
CH3CH2┐ ┌CH3
C=C
CH3CH2CH2┘ └CH2CH3
Alkynes:
- Triple bonds
- naming: end with -yne
CH≡CH Ethyne
CH≡C-CH3 Propyne
CH3-CH2-CH-C≡C-CH3
└CH3 4-methyl-2-haxyne
Alkene:
Alkyne
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