Alkenes and Alkynes Overview

These flashcards cover the key vocabulary and definitions related to alkenes and alkynes, as discussed in the lecture notes.

Alkenes

Family of organic molecules characterized by at least one carbon-carbon double bond, making them unsaturated hydrocarbons.

Alkynes

Family of organic molecules characterized by at least one carbon-carbon triple bond, also making them unsaturated hydrocarbons.

Allenes

Compounds that contain a carbon-carbon double bond (C=C), with a general formula of CnHen.

Unsaturated Hydrocarbons

Molecules that contain fewer than the maximum number of hydrogen atoms per carbon, due to the presence of multiple bonds.

General Formula for Alkenes

CnH2n, indicating the number of hydrogen atoms in relation to carbon.

General Formula for Alkynes

CnH2n-2, indicating the number of hydrogen atoms in relation to carbon.

Nomenclature of Alkenes

Naming convention that includes identifying the longest carbon chain containing the double bond and assigning the lowest possible number to it.

1-Butene

An alkene with four carbon atoms and a double bond between the first and second carbon.

2-Hexyne

An alkyne with six carbon atoms and a triple bond between the second and third carbon.

Physical Properties of Alkenes and Alkynes

Low melting and boiling points, and they are insoluble in water.

Condensed Structure

A structural representation that simplifies the arrangement of atoms, usually showing multiple bonds.