Lect3_0824 - Ch 1 11 Ch 1 12 sp 2 Ch 1 13 A pi p bond part...

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Ch. 1 - 1 11. Molecular Orbitals
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Ch. 1 - 2 An antibonding molecular orbital ( * molec ) results when two orbitals of opposite phase overlap A bonding molecular orbital ( molec ) results when two orbitals of the same phase overlap
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Ch. 1 - 3 12. The Structure of Methane and Ethane: sp 3 Hybridization C 1s 2s 2p x 2p y 2p z Ground state of a carbon atom
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Ch. 1 - 4 The Tetrahedral Shape of The Tetrahedral Shape of Methane Methane 3D Structures
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Ch. 1 - 5 12A. 12A. The Structure of Methane The Structure of Methane
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Ch. 1 - 6
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Ch. 1 - 7 A sigma ( s ) bond (a type of single bond) is one in which the electron density has circular symmetry when viewed along the bond axis
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Ch. 1 - 8
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Ch. 1 - 9 13. The Structure of Ethene (Ethylene): sp 2 Hybridization sp 2
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Ch. 1 - 10
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Unformatted text preview: Ch. 1 - 11 Ch. 1 - 12 sp 2 Ch. 1 - 13 A pi ( p ) bond , part of double and triple carbon–carbon bonds, is one in which the electron densities of two adjacent parallel p orbitals overlap sideways to form a bonding pi molecular orbital Ch. 1 - 14 13 13 A A . . Restricted Rotation and the Restricted Rotation and the Double Bond Double Bond There is a large energy barrier to rotation associated with groups joined by a double bond ● ~264 kJmol-1 (strength of the bond) ● To compare: rotation of groups joined by C-C single bonds ~13-26 kJmol-1 13 13 B B . . Cis Cis – – Trans Isomerism Trans Isomerism Stereochemistry of double bonds Ch. 1 - 15...
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Lect3_0824 - Ch 1 11 Ch 1 12 sp 2 Ch 1 13 A pi p bond part...

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