hydrocarbon-nomenclature

hydrocarbon-nomenclature - Naming Hydrocarbons...

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Unformatted text preview: Naming Hydrocarbons (nomenclature) Drawing Structures: Its All Good C H 3 C H C H CH 3 C H 3 CH 3 C H 3 CH CH CH 3 2-butene This is called the condensed structure C C C C H H H H H H H H C H 3 CH CH CH 3 On a test, choose a method that shows all Hs CH 3 CH=CHCH 3 Using brackets can also shorten some formulas: CH 3 CH 2 CH 2 CH 2 CH 2 CH 3 vs. CH 3 (CH 2 ) 4 CH 3 Basic Naming of Hydrocarbons Hydrocarbon names are based on: 1) type, 2) # of carbons, 3) side chain type and position 1) name will end in -ane, -ene, or -yne 2) the number of carbons is given by a prefix 1 meth- 2 eth- 3 prop- 4 but- 5 pent- 6 hex- 7 hept- 8 oct- 9 non- 10 dec- Actually, all end in a, but a is dropped when next to a vowel. E.g. a 6 C alkene is hexene Q - What names would be given to these: 7C, 9C alkane 2C, 4C alkyne 1C, 3C alkene heptane, nonane ethyne, butyne methene, propene Mnemonic for First Four Prefixes First four prefixes M eth- E th- P rop- B ut- M onkeys E at P eeled B ananas ? Decade Decimal Decathalon Other Prefixes Pent- Oct- Dec- Hex-, Hept-, Non- Numbering Carbons Q- draw pentene A- Wheres the double bond? We # C atoms....
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hydrocarbon-nomenclature - Naming Hydrocarbons...

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