Structure and Bonding in Organic Chemistry - PowerPoint PPT Presentation

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Structure and Bonding in Organic Chemistry

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Structure and Bonding in Organic Chemistry Electron Configurations Lewis Dot Structures Hybridization Orbital depictions Lewis Dot Structure of Methane sp3 ... – PowerPoint PPT presentation

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Title: Structure and Bonding in Organic Chemistry


1
Structure and Bonding in Organic Chemistry
  • Electron Configurations
  • Lewis Dot Structures
  • Hybridization
  • Orbital depictions

2
Organic Chemists Periodic Table
3
Molecular Model of Aspirin
4
(No Transcript)
5
Nucleus is a Tiny Fraction of the Volume of an
Atom
6
Orbitals are Probabilities
7
Electron Configurations
8
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9
Ground State Electron Configurations
10
The p Orbital
11
px, py, pz
12
Bonding in H2Sigma (s) Bond
13
Energy Released When Bond Forms
14
Drawing Structures
15
Octane Representations
16
Condensed Formulas
17
Line-Angle Structures are Often Used as a
Short-hand
18
Line-Angle Structures
19
(No Transcript)
20
Line-Angle structure Superimposed on Lewis
Structure
21
Double Bonds are Shown
22
For Cyclic Structures, Draw the Corresponding
Polygon
23
Drawing Clear Structures
24
Structures take Cues from Models
25
Some Steroids
26
Benzene can be drawn as one of two resonance
structures
27
Some Line-Angle Structures
28
(No Transcript)
29
Bonding Characteristics of Period 2 Elements
30
Saturated with Hydrogen
31
A Model of a Saturated Hydrocarbon
32
Electron Configuration of Carbon
33
In Ground State2 bonding sites, 1 lone pair
The ground state configuration cannot account for
the bonding in CH4!
34
Lewis Dot Structure of Methane
35
sp3 Hybridization 4 Regions of electron
Density
36
Hybridization of 1 s and 3 p Orbitals sp3
37
sp3 is Tetrahedral GeometryMethane
38
Tetrahedral Geometry
39
Methane Representations
40
Orbital Depiction of Ethane, C2H6 , the s bond
41
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42
(No Transcript)
43
(No Transcript)
44
Depictions of 2-Methylbutane
45
Ammonia Tetrahedral GeometryPyramidal Shape
46
All Have the Same GeometryAll Have 4 Regions of
Electron Density
47
sp2 Hybridization3 Regions of Electron Density
48
Hybridization of 1 s and 2 p Orbitals sp2
49
An sp2 Hybridized Atom
50
The p bondOverlap of 2 parallel p Orbitals
51
Ethylene CH2CH2
52
Views of Ethylene, C2H4
53
Ethylene
54
Formaldehyde
55
sp Hybridization2 Regions of Electron Density
56
The sp Orbital
57
Acetylene, C2H2, 1 s bond 2 perpendicular p
bonds
58
Consider the structure of Ibuprofen
  1. In your notebook, indicate which atoms are
    sp3-hybridized, sp2, sp.
  2. What is the molecular formula?

59
Draw the Lewis structure and identify the
hybridization of the central atoms.
  1. C3H4
  2. Carbon dioxide
  3. CH3
  4. NH4
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