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Organic Chemistry
The study of carbon compounds
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Carbon
Is unique because they can bond to each other to form long chains and rings.
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Hydrocarbons
Are composed entirely of carbon and hydrogen (they are the simplest organic compounds)
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Alkanes
- Are hydrocarbons that contain single bonds.
- Formula CnH(2n+2)
- Ends in -ane
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Properties of Hydrocarbons
- Solid, liquid, or gas depending on # of carbons.
- Nonpolar
- Insoluble in water
- Burn producing a lot of heat
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Isomers
Compounds with the same molecular formula but different structural formulas
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Cylic Hydrocarbons
- Are ring compounds
- Formula: CnH(2n)
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Alkenes
- Hydrocarbons which contain a carbon to carbon double bond.
- Formula: CnH(2n)
- Ends in -ene
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Alkynes
- Hydrocarbons that contain a triple bond.
- Formula: CnH(2n-n)
- Ends in -yne
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Saturated Hydrocarbons
- When each carbon atom is bonded to the maximum number of hydrogen atoms.
- Ex: Alkanes
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Unsaturated Hydrocarbons
- When more hydrogen atoms can be added, adding a double or triple bond( addition reactions)
- Ex: Alkenes and Alkynes
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Addition Reactions
When a molecule adds to the double or triple bond.
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Benzene (C6H6)
A unique organic compound that is a very stable six-sided ring.
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Aromatic
When hydrocarbons contain a benzene ring or have properties similar o benzene.
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Functional Groups
Atoms of groups of atoms attached to hydrocarbons skeletons give the compounds characteristic chemical and physical properties.
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Chlorinated Hydrocarbon
- When H atoms of a hydrocarbon are substituted by chlorine.
- Ex: Dichloromethane and Trichloromethane
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Chlorofluorocarbons
Carbon compounds with both chlorine and flourine.
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Alcohol
Contains the hydroxl (-OH) functional group.
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Phenols
- -Aromatic compounds with the hydroxyl group attached
- •The presence of the aromatic ring alters the properties of the hydroxyl group.
- •do not act as alcohols but as acidsare an effective antiseptic
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Ethers
Ethers are compounds with two alkyl groups bonded to the same oxygen.
General formula: ROR or ROR’
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Carboxylic Acids
Organic acids that contain the carboxyl (COOH) functional group
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Esters
Similar to carboxylic acid, (RCOOR'). with an alkyl group replacing the hydrogen atom of the carboxyl group.
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Amine
A hydrocarbon derived of ammonia in which one or more hydrogen atoms are replaced by alkyl groups.
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Amide
- Have the Nitroen bonded to a carbon.
- Has Oxygen attached to Nitrogen
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Heterocyclic Compounds
- Are rings that contain atoms other than carbon as part of the ring.
- Ex: N, O, S
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Polymers
- Molecules with a large molecularmass formed as a chain of repeating smaller units.
- Poly- means many
- Mer- means parts
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Monomers
The small building blocks that make a Polymer
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Polymerization
Process whereby monomers are joined together to form a polymer
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Addition Polymerization
Occurs when monomers add to one another in such a way that the resulting molecule contains all atoms that are present in monomers.
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Condensation Polymeriation
Small molecules such as water, alcohol, ammonia, or HCL, are released by byproucts
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Depisition
Gas to a solid
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Ionic vs Covalent Bonds
- Ionic: When positive and negative bonds attrack.
- Covalent: When 2 atoms share electrons.
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Copolymer
When 2 momomers connect
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Glass Transition (Tg)
- High- above= tacky rubbery
- Low- below= glass
You want a car tire with low temp
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Volcanisation
Makes polymer more rigid/ stronger
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