Quiz 1
February 9, Friday
(12:20 –12:50)
Chapter 1-2
Practice Quizzes / Keys available at
http://www.chem.wisc.edu/courses/343/lee/
Discussion Room Change
321 (Alex Clemens) moved to B357
322 (Alex Clemens) moved to B357
323 (Chris Marvin) moved to 2373
326 (Andrew Dilger) moved to 2307
327 (Chris Marvin) moved to 2307
328 (Andrew Dilger) moved to 2307
329 (Chris Marvin) moved to B383
330 (Andrew Dilger) moved to 2373
Representative Functional Groups
Br
Cl
O
Br
Dactylyne
OH
O
OH
O
O
Cortisone
Representative Functional Groups
O
H
O
O
OH
O
OH
O
CH3O
N
Guanacastepene A
H3C
OH
CH3
O
N
H
N
CH3
Calyculin A
O
N
CH3
C
H H
N
O
CH3
O
H
S
N
CH3
CH3
O
Penicillin G
(HO)2P H3C
CH3 CH3 O
H CO2H
CH3
CH3
OH
OH
OCH3
O
CH3
OH
Summary of Electronic Interactions
The nature of chemical bond in a molecule dictates the
chemical and physical properties of the molecule.
Summary of Electronic Interactions
The nature of chemical bond in a molecule dictates the
chemical and physical properties of the molecule.
Ionic bonds (Ion–Ion interaction): Sodium acetate
*Solid (crystal)
*High melting point (324 °C)
O
H3C
Na
O
Summary of Electronic Interactions
The nature of chemical bond in a molecule dictates the
chemical and physical properties of the molecule.
Covalent bonds: polar and nonpolar molecules
Cl
Cl
C Cl
Cl
Summary of Electronic Interactions
The nature of chemical bond in a molecule dictates the
chemical and physical properties of the molecule.
Ion-dipole interaction: solubility of NaCl in water
Summary of Electronic Interactions
The nature of chemical bond in a molecule dictates the
chemical and physical properties of the molecule.
Dipole-dipole interaction: between molecules with polar covalent
Bond (Hydrogen bond)
δ
O
H3C
δ CH3
Representative Hydrogen Bonds
H
O
O
N
N
N
O
H
O
H
H
O
N
N
N
H
O
Ph
H
Summary of Electronic Interactions
The nature of chemical bond in a molecule dictates the
chemical and physical properties of the molecule.
van der Waals interaction (Induced dipole–Induced dipole):
molecules with nonpolar covalent bond
Polarizability: the ability of electron density to responds to
electric field (generally depends on the size of electron cloud)
(F < Cl < Br < I)
Chapter 2
Suggested Problems
Ch 2.1–2.4: Hydrocarbons (Alkane, Alkene, Alkyne, Saturated &
unsaturated compounds, Aromatic compounds)
Dipole moment, Polar & nonpolar covalent bonds
Problem 2.1, 2.2, 2.4, 2.7, 2.8
Ch 2.5–2.13: Functional groups (name and structure–connectivity)
General formula of compounds with specific f.g.
(Alkane, Alkene, Alkyne, Benzene (aromatic), Haloalkane
Alcohol, Ether, Amine, Carbonyl compounds
Aldehyde, Ketone, Carboxylic acid, Ester, Amide, Nitrile)
Problem 2.9–2.15, 2.20–2.23, 2.25–2.27, 2.32, 2.36,
2.37, 2.41, 2.42.
Ch 2.14
: Hydrogen bond, Polarizability