• Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

Card Range To Study

through

image

Play button

image

Play button

image

Progress

1/51

Click to flip

Use LEFT and RIGHT arrow keys to navigate between flashcards;

Use UP and DOWN arrow keys to flip the card;

H to show hint;

A reads text to speech;

51 Cards in this Set

  • Front
  • Back
Fastest Reactor
Strong Activators
Ortho/Para Directors
1. Strong Activators

2. Moderate Activators

3. Weak Activators

4. Weak Deactivators
Strong Activators
NH2 ; NHR ; NR2 ; OH
Moderate Activators
NHCOCH3 ; NHCOR ; OCH3 ; OR
Weak Activators
CH3 ; CH2CH3 ; R ; C6H5
Meta Directors
1. Moderate Deactivators

2. Strong Deactivator
Moderate Deactivators
CN ; SO3H ; COOH ; COOR ; CHO ; COR
Strong Deactivator
NO2 ; NR3+ ; CF3 ; CCl3
Slowest Reactor
Strong Deactivators
NH2 ; NHR ; NR2 ; OH
Strong Activators
NO2 ; NR3+ ; CF3 ; CCl3
Strong Deactivators
Weak Deactivators
F ; Cl ; Br ; I
F ; Cl ; Br ; I
Weak Deactivators
CN ; SO3H ; COOH ; COOR ; CHO ; COR
Moderate Deactivators
CH3 ; CH2CH3 ; R ; C6H5
Weak Activators
NHCOCH3 ; NHCOR ; OCH3 ; OR
Moderate Activators
Mass Spectroscopy
1. molecular weight
2. elemental composition
3. fragmentation
Nuclear Magnetic Resonance (NMR)
1. number
2. nature
3. environment of hydrogen in the molecule

* the more powerful the molecules, the more powerful the magnets
Can the solution of NMR use hydrogen?
NO HYDROGENS can be used in the solvents on NMR
Nuclei Spin
odd numbered mass numbers and off atomic numbers have this _________
NMR Parallel
aligns with the magnetic field
NMR Anti-Parallel
does against the magnetic field
Nucleus absorbing energy
they need to to in order to move from one orbital to another
NMR has _____ magnetic field & frequency
BOTH
NMR - number of hydrogens
area under the peak is proportional to the number of hydrogens
NMR - nature of hydrogens
not all hydrogens are the same - shielding/deshielding
NMR - environment of the hydrogen
the higher the electronegativity is deshielding
Silicon
one of the MOST electronegative organic molecules
CHNOPS
found downfield of the electropositive
Delta Scale
small delta = observed shift (H2) x 10^6 / frequency of the generator (H2)
Will the environment affect the hydrogen shift?
YES
Integrator
Steps
Chemical Shift
peak shift depending on the surrounding environments
Spin-Spin Coupling
couple either spin against or with the molecule
2N + 1 rule
neighbors - add 1 to get the peak

deciphers the degree of unsaturation
Alkanes
CnH2n + 2
Alkenes
CnH2n
Alkynes
CnH2n - 2
Off Resonance Decoupling
the carbons would NOT be split by the other carbons but BY the hydrogens

not commonly used
Electromagnetic Radiation
exposing ion to energy to a molecule
Absorb energy
elevate the electron to an excited state
Fluorescence
absorb energy
Phosphorescence
absorb energy but then drops to an unfavorable level then bounces back but it takes hours
Beer-Bougner-Lambert Law
amount of absorbed radiation is directly proportional to the number of molecules in the pathway
Chromophores
color producers
Ultraviolet
movement of electron from one orbit to another HOWEVER they move to a different orbit than the visible
Stretch Vibrations
vibrate back and forth
Bending Vibrations
move side to side
Frequency is related to....
Mass & Bond Strength
If the mass of bonded atoms increase.....
there is an decrease of energy of vibration pressure
As bond strength increases, frequency
increases.....