8_Org2 - Organic Part 2 Hydrocarbons 1. Alkanes: all single...

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Mary J. Bojan Chem 110 Organic Part 2 Hydrocarbons 1. Alkanes: all single bonds 2. Alkenes: C = C saturated v. unsaturated structural isomers geometric isomers 3. Alkynes: C C 4. Aromatic hydrocarbons Reactivity of hydrocarbons addition reactions combustion reactions Petroleum 1
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New skills related to molecular formulas have been added. • From now on know how to interpret: – Lewis structures – Condensed molecular formulas – Carbon backbone structures • To expand condensed molecular formulas and carbon backbones into Lewis structures use the rules of valence. MJ Bojan Chem 110 2
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Mary J. Bojan Chem 110 Can you interpret this structure? This is the structure of 4-ethyl-2,3,3-trimethylnonane What is the molecular formula of this compound? How many ί CH 3 groups are there on this compound? 3
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Mary J. Bojan Chem 110 HYDROCARBONS Simplest organic compounds Contain only C and H Alkanes saturated have the maximum number of H attached to the C skeleton. Alkenes unsaturated Alkynes have double or Aromatic triple bonds 4
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Mary J. Bojan Chem 110 ALKENES Contain one or more double bonds propene ethene EPG: MG : C = C ί H or C = C ί C Bond angle 5 C H H H H C C H H H CH 3 C The carbons on either side of the double bond have three electron domains . C C C n H 2n
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Mary J. Bojan Chem 110 ALKENES Contain one or more double bonds Rotation about double bond is restricted 6 These p -orbitals can overlap, sideways: π -bond
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Mary J. Bojan Chem 110 Butene C 4 H 8 There are several possible structures for a chain of
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8_Org2 - Organic Part 2 Hydrocarbons 1. Alkanes: all single...

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