1 / 7

Alkenes and Alkynes

Alkenes and Alkynes. Alkenes. hydrocarbons that contain one or more double bonds Non-polar General formula C n H 2n. Properties of Alkenes. Unsaturated hydrocarbon Boiling points are slightly less than the boiling points of similar-sized alkanes Non-polar – low solubility in water

marv
Download Presentation

Alkenes and Alkynes

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Alkenes and Alkynes

  2. Alkenes • hydrocarbons that contain one or more double bonds • Non-polar • General formula CnH2n

  3. Properties of Alkenes • Unsaturated hydrocarbon • Boiling points are slightly less than the boiling points of similar-sized alkanes • Non-polar – low solubility in water • More reactive than alkanes

  4. Naming Alkenes • Follow the same format as alkanes: Prefix + Root + Suffix *the suffix for alkenes is -ene • Also need the location of the double bond • The double bond has the lowest possible position number

  5. Cis-Trans (Geometric) Isomers

  6. General Rules for Geometric Isomers • Each carbon in the C=C double bond must be attached to two different groups. • In a cis isomer the two larger groups are attached to each C=C double bond on the same side. • In a trans isomer, the two larger groups are attached to each C=C double bond on opposite sides.

  7. Alkynes • Contain one or more triple bonds • Unsaturated hydrocarbons • Structure with a triple bond is linear • More reactive than the double bond • General formula CnH2n-2 • Naming alkynes follow the same rules for alkenes

More Related