-
atom/group of atoms with characteristic reactivity
Functional Group
-
What is the Compound Type AND the Functional Group:
R-H
CH3CH3
Compound Type: Alkane
Functional Group: none
-
What is the Compound Type AND the Functional Group:
\C=C/
/ \
- Compound type: Alkene
- Functional Group: double bond
-
What is the Compound Type AND the Functional Group:
-C=-C-
H-C=-C-H
- Compound Type: Alkyne
- Functional Group: triple bond
-
What is the Compound Type AND the Functional Group:
\ | /.......................H H H
[O].........................\ | /
/ | \.........................[O]
............................../ | \
............................H H H
- Compound Type: Aromatic
- Functional Group: phenyl group
- (benzene ring)
-
Functional Group that are organic compounds containing only C and H
Hydrocarbons
-
Functional groups that contain other atoms
heteroatoms
-
What is the Compound Type AND the Functional Group:
R-X
CH3-Br
- Compound Type: Alkyl Halide
- Functional Group: Halo
-
What is the Compound Type AND the Functional Group:
R-OH
CH3-OH
- Compound Type: Ether
- Functional Group: alkoxy group
-
What is the Compound Type AND the Functional Group:
R-NH2
CH3-NH2
- Compound Type: Amine
- Functional Group: Aminio Group
-
What is the Compound Type AND the Functional Group:
R-SH
CH3-SH
- Compound Type: Thiol
- Functional Group: Alkylthio Group
-
Functional Group that contains several Hydroxy groups
Sugars
-
What is the Compound Type AND the Functional Group:
..O........................O
..||...................||
./ \................./ \
R H..........CH3 H
- Compound Type: Aldehyde
- Functional Group: Carbonyl group
-
What is the Compound Type AND the Functional Group:
..O..................O
..||...................||
./ \................./ \
R R..........CH3 CH3
- Compound Type: Ketone
- Functional Group: Carbonyl group
-
What is the Compound Type AND the Functional Group:
..O..................O
..||...................||
./ \................../ \
R OH........CH3 OH
- Compound Type: caroxylic acid
- Functional Group: Carboxyl group
-
What is the Compound Type AND the Functional Group:
..O..................O
..||...................||
./ \................../ \
R OR........CH3 OCH3
- Compound Type: Ester
- Functional Group: none (ester group)
-
What is the Compound Type AND the Functional Group:
..O...........................O
..||............................||
./ \.....H/R.............../ \.....H
R N./................CH3 ..N/
......\H/R.........................\H
- Compound Type: Amide
- Functional Group: none (Amide group)
-
What is the Compound Type AND the Functional Group:
..O..................O
..||...................||
./ \................../ \
R Cl........CH3 .. Cl
- Compound Type: Acid chloride
- Functional Group: none (not very common)
-
Name for electron rich sites.
May contain lone pairs.
Cl (d-) <---*
...|(d+)
/.....\
|......|
\ __/
Nucleophilic
-
Electron poor sites.
C atoms bonded to electronegative atoms.
Cl (d-) <---*
...|(d+)
/.....\
|......|
\ __/
electrophilic
-
How does intermolecular forces affect bp and mp?
stronger intermolecular forces = higher bp and higher mp
-
Weak attractions due to temporary dipoles
van der Waals forces
-
When a van der Waals forces contains larger surface area, what happens to the attraction between molecules?
larger surface area = stronger attraction between monecules
-
when van der Waals forces contain less surface area, what happens to the attraction between molecules?
less surface area = weaker attraction
-
van der Waals forces have more branching, what happens to the attraction between molecules?
more branching = weaker attraction
-
Are van der Waals attractions stronger or weaker with polarization?
polar molecules = stronger attractions
-
interactions that take place between molecules with permanent dipoles (polar molecules)
dipole - dipole interactions
-
attraction between a H atom bonded to a O, N, or F with a lone pair on another O, N, or F atom
Hydrogen bonding
-
what makes organic compounds more soluable in water?
hydroxyl groups (OH)
-
what type of compounds to polar solvents dissolve?
polar compounds
-
what type of compounds to non-polar solvents dissolve?
non-polar compounds
-
Bronsted-Lowery definition of an acid
Acid - H+ donor
-
Bronsted-Lowery definition of a Base
Base = H+ acceptor
-
how does the pKa affect an acid?
smaller the pKa = stronger the acid
-
When is an acid - base reaction PRODUCT favored?
if the pKa of the acid is LOWER than the pKa of the conjugate acid
-
if the acid is STRONG, its conjugate base is...?
strong acid = weak conjugate base
-
if the acid is WEAK, the conjugate base is ...?
weak acid = strong conjugate base
-
Are organic acids weak or strong?
weak
-
4 factors that determine conjugate base stability (therefore acidity):
- 1.) Periodic trends - MOST IMPORTANT
- 2.) Inductive effects
- 3.) Resonance effects
- 4.) Hybridization effects
-
as you move accross the Periodic table, what happens to acidity stregnth?
across the table = increase acidity
-
as you move down the columns on the periodic table, what happens to acid stregnth?
down columns = increase acidity
-
which is more electronegative, C or O?
which would be more stable with lone pairs? why?
O - O - because being more electronegative, it doesnt mind being negative (-)
-
Whats the difinition for a Lewis acid?
Acid = electron pair acceptor
-
Whats the definition for a Lewis base?
Base = electron pair donor
-
Which is more broad, the Lewis or Bronsted - Lowery definition of an acid?
Lewis
-
Are all Bronsted-Lowery acids Lewis acids?
YES
-
Are all Lewis acids Bronsted-Lowery acids?
NO
-
a joining of two atoms in a stable arrangement, completes outer shell of each atom (octet rule)
bonding
-
Type of bonding in organic compounds
Covalent
-
bonding where electrons are being shared
covalent
-
what determines the properties of Carbon and other elements
valence electrons (outer shell)
-
what is organic chemistry?
study of carbon compounds
-
what model is shown when chemical bonds are formed by shared electron pairs
Lewis model
-
model where chemical bonds are formed by overlap of singly occupied atomic orbitals
Valence bond theory
-
Why do we use valence bond theory to show our molecules in Organic Chemistry?
provides a good description of bonding in compounds
-
model where bonds are described using molecular orbitals - mathematical combinations of atomic orbitals
molecular orbital theory
-
charge assigned to a specific atom in a chemical structure
(valence e- - "owned" e-)
formal charge
-
a TRUE STRUCTURE for a molecule
hybrid of resonance structures
-
how does resonance structures affect stability?
larger # of resonance structures = greater stability
-
a combination of orbitals
hybridization
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