Important signals listed in Dr. B's summary sheet and in the table from p.169 of the textbook
What functional group has this strong, broad signal at ~3400-3300cm-1?
alcohol
At what frequency is the signal for this structural unit found?
3200-3600
At what frequency is the signal for this structural unit found?
2200-3600
At what frequency is the signal for this structural unit found?
3350-3500
At what frequency is the signal for this structural unit found?
~3300
At what frequency is the signal for this structural unit found?
3000-3100
At what frequency is the signal for this structural unit found?
2850-3000
At what frequency is the signal for this structural unit found?
2750-2850
At what frequency is the signal for this structural unit found?
2100-2200
At what frequency is the signal for this structural unit found?
2200-2300
At what frequency is the signal for this structural unit found?
1750-1850
At what frequency is the signal for this structural unit found?
1700-1750
At what frequency is the signal for this structural unit found?
1700-1750
At what frequency is the signal for this structural unit found?
1680-1750
At what frequency is the signal for this structural unit found?
1650-1700
At what frequency is the signal for this structural unit found?
1600-1700
At what frequency is the signal for this structural unit found?
1450-1600, 1650-2000
What produces 2 medium peaks at a frequency of ~3400-3200cm-1?
primary amine
What produces 1 weak peak at a frequency of ~3400-3200cm-1?
secondary amine
What produces a strong and very broad signal at 3500-2400cm-1?
carboxylic acid
What produces a strong, sharp signal at ~3300cm-1?
alkyne C-H
What produces a medium to weak signal just above 3000cm-1?
unsaturated C-H
What produces a strong signal just below 3000cm-1?
saturated C-H
What produces a pair of medium to weak signals at 2900-2800 and 2800-2700?
aldehyde
What produces a medium, sharp signal at 2260-2220cm-1?
nitrile
What produces a medium, sharp signal at 2260-2100cm-1?
alkyne (Don’t confuse with alkyne attached to H!)
What has a strong signal at ~2160-2120cm-1?
azide (N3)
What has a strong signal at ~1700cm-1?
carbonyl
What is the frequency range for the signal produced by this carbonyl?
~1750-1700cm-1
What is the frequency range for the signal produced by this carbonyl?
~1750-1680cm-1
What is the frequency range for the signal produced by this carbonyl?
~1700-1650cm-1
What produces a medium to weak signal at ~1700-1600cm-1?
alkene
What produces a pair of strong to medium signals at ~1600 & 1475cm-1?
benzene
What produces a pair of strong to medium signals at ~1550 & 1350cm-1?
nitro (NO2)
What produces a strong to medium signal at ~1250-1000cm-1 with “shouldering”?
C-O single bond
At what frequency is the signal for this structural unit found?
600-800
At what frequency is the signal for this structural unit found?
500-600
At what frequency is the signal for this structural unit found?
1000-1100
At what frequency is the signal for this structural unit found?
1250-1350
At what frequency is the signal for this structural unit found?
1000-1200
At what frequency is the signal for this structural unit found?
900-920, 980-100
At what frequency is the signal for this structural unit found?
880-900
At what frequency is the signal for this structural unit found?
1370, 1380
At what frequency is the signal for this structural unit found?
1370, 1390