1. Organic Chemistry
EL 11

2. Carbon bonding Carbon is unique because it can form 4 equal bonds.
This property allows it to form multiple types of bonds.
Can also form long chains of atoms.

3. Hydrocarbons Molecules that contain only carbon and hydrogen.
Alkanes – hydrocarbons that contain only single bonds – also called saturated hydrocarbons.
Alkenes – hydrocarbons that contain a double bond.
Alkynes – hydrocarbons that contain a triple bond.

4. Naming system for hydrocarbons
Hydrocarbons are named based on the number of carbons they have and the types of bonds they contain.
Here are the prefixes.
If the compound contains:
1 carbon = meth-
2 carbons = eth-
3 carbons = prop-
4 carbons = but-
5 carbons = pent-
6 carbons = hex-
7 carbons = hept-
8 carbons = oct-
9 carbons = non-
10 carbons = dec-

5. The suffix depends on the types of bonds that are between the carbon atoms.
If there are
Single bonds = -ane
Double bonds = -ene
Triple bonds = -yne
Examples
Methane ( a hydrocarbon with 1 carbon and single bonds)

6. Ethane
Propane
Propene

7. Butane
Butyne
Pentene

8. Naming hydrocarbons What is the name of the following hydrocarbon?
H H H H H H
H – C – C – C = C – C – C – H
H H H H

9. Isomers
2 structures that have the same number of carbons, but a different structure that gives them different properties.
See isomer lab for types of isomers, structures and naming.

10. Functional groups
Elements other than H that are attached to the carbon chain that give the molecule different properties.
Methyl = CH3 ( we have already seen these as part of a carbon chain)
Alcohol – OH
Ethanol

11. Polymers
Large chain molecules made from a smaller molecules called monomers.
Monomers join together in repeating patterns.
Examples
DNA – made from nucleotides that join together in a pattern to make a large molecule.
Contains the genetic code.
Protein – made from amino acids that are joined together in patterns to make various proteins.
Acts as enzymes and support many body functions.
Carbohydrates – made from simple sugars called monosaccharides, like glucose or fructose.
Source of food energy and help provide plant structure.
Lipids – 3 fatty acids and a glycerol molecule.
Soaps, waxes, oil, steroids, fat storage.

12. Identifying monomers What is the monomer for the following polymers?
H H H H H H H H H H
I I I I I I I I I I
- C – C – C – C – C – C – C – C – C – C
I I I I I I I I I I
H COOH H COONa H COOH H COONa H COOH
2. H H H H H H H H H H
H COOH H COOH H COOH H COOH H COOH

13. “Cis” and “trans” molecules
A naming system for isomers of alkanes and alkynes.
We use “trans” when the branched groups are on opposite sides of the double or triple bond and “cis” when they are on the same side.
trans-2-butene cis-2-butene

14. Cis and trans fatty acids