Akenes and Alkynes Flashcards
Is a hydrocarbon in which one or more carbon-carbon multiple bonds (double bonds, triple bonds, or both) are present.
Unsaturated Hydrocarbons
Why are unsaturated hydrocarbons more reactive than their saturated counterparts?
Related to the presences of carbon-carbon multiple bonds.
Kinds of saturated hydrocarbons?
Alkanes
Kinds of unsaturated hydrocarbons?
Alkenes and Alkynes
Alkene is an?
Acyclic Unsaturated Hydrocarbon
Older name for Alkene is?
Olefins
What does olenfins mean?
Oil Forming
Molecular formula of the simplest alkene?
CnH2n
What are the simplest alkenes?
Ethene and Propene
What is another name for cycloalkene?
Cyclic unsaturated hydrocarbon
General molecular formula of cycloalkanes?
CnH2n-2
What is the simplest cycloalkene?
Cyclopropene
Two double bond name?
Dienes
Three double bond name?
Trienes
It is a noncyclic hydrocarbon substituent?
Alkenyl Group
Most frequently encountered alkenyl group?
Methylidene
Ethenyl
2-propenyl
common name of methylidene?
Methylene Group
common name of Ethenyl?
Vinyl Group
common name of 2-propenyl?
Allyl Group
Used for the isomer in which the two similar or identical substituents are on the same side of the double bond?
Cis
Used when two similar substituents are on the opposite sides of the double bond?
Trans
Traditional way of naming the geometric isomers of an alkene?
cis-trans
The more complete system for naming alkene isomers?
E-Z system
What do you call the priority rules used in the E-Z system?
Cahn-Ingold-Prelog (CIP) Rules
Used when the higher priority groups on each carbon are on the same side of the double bond?
Z-configuration
What does Z stand for?
Zussammen meaning “together”
Used when the higher priority groups on each carbon are on the opposite side of the double bond?
E-configuration
What does E stand for?
Entgegen meaning “opposite”
C2-C4
gas
C5-C14
liquid
C15-above
solid
What are alkenes, polar or non-polar?
non polar, less dense than water, insoluble
What is an alkyne?
unsaturated acyclic hydrocarbon
Formula of the simplest member of alkyne?
C2H2
The simplest alkyne?
Ethyne