1. Aims: 1.Discuss the cycloalkane family.

2. Homologous series Look similar Same first name All ring structures

3. Cycloalkanes The cycloalkanes are another series of hydrocarbons. The carbon atoms form a ring and all carbon to carbon bonds are saturated (carbon to carbon single bonds).

4. Cyclopropane C3H6C3H6

5. Cyclobutane C4H8C4H8 H

6. Name of Cycloalkane Molecular Formula Full Structural Formula Shortened Structural Formula Cyclopropane Cyclobutane Cyclopentane Cyclohexane C3H6C3H6 C4H8C4H8 C 5 H 10 C 6 H 12

7. Cycloalkanes – Homologous series 1.All cycloalkanes can be represented by a general formula which is: 2.They all have similar chemical properties 3.There is a link between their physical properties and their melting and boiling points. C n H 2n

8. Isomers - Have the same molecular formula but different structural formula. e.g. C 3 H 6 is the molecular formula for … Propene Cyclopropane and

9. Butene and cyclobutane are isomers because they both have the molecular formula C 4 H 8 but their structures are different.

10. There are two isomers of butane, both with the molecular formula C 4 H 10. Butane 2-methylpropane The larger the hydrocarbon, the more isomers are possible. Can you try to draw 3 isomers for pentane?