CH3-Outline

CH3-Outline - rotation around single bonds a Ethane First of all let’s take a look at different ways to draw 3D structures of a molecule(1

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CHAPTER 3. CONFORMATIONS OF ALKANES AND CYCLOALKANES & INTRAMOLECULAR FORCES THAT GOVERN RELATIVE STABILITY OF MOLECULES (ENTHALPY) 1. Conformation of alkanes (torsional strain and/or steric hindrance) a. Ethane b. Propane c. Butane 2. Conformation of cycloalkanes (angle strain) a. Cyclopropane b. Cyclobutane c. Cyclopentane d. Cyclohexane e. Mono-substituted cyclohexanes f. Di-substituted cyclohexanes 3. Bicyclic nomenclature 4. Polycyclic systems 5. Heterocyclic compounds Molecular forces that govern properties of a molecule: Interactions Forces Observations
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1. Conformation of Alkanes – Different spatial arrangements of a molecule due to
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Unformatted text preview: rotation around single bonds. a. Ethane First of all, let’s take a look at different ways to draw 3D structures of a molecule. (1) wedge & dash (2) Newman projection b. Propane c. Butane 2. Conformation of cycloalkanes a. Cyclopropane b. Cyclobutane c. Cyclopropane d. Cyclohexane e. Monosubstituted Cyclohexanes (1) Equatorial and axial (2) Free energy difference ( ∆ G) Ex: Ex: f. Disubstituted cyclohexanes 3. Bicyclic nomenclature 4. Polycyclic systems 5. Heterocyclic compounds...
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This note was uploaded on 12/09/2009 for the course CHEM 105 taught by Professor Macedone during the Spring '07 term at BYU.

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CH3-Outline - rotation around single bonds a Ethane First of all let’s take a look at different ways to draw 3D structures of a molecule(1

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