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43 Cards in this Set

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Chemical Shift Equation
distance of peak from (CH3)4Si in Hz / spectrometer frequency in megahertz
-answer is in ppm
Alkane and Alkane like hydrogens
-primary alkyl:RCH3 .8 - 1.0 ppm
-secondary alkyl:RCH2R' 1.2 - 1.4 -tertiary alkyl:R3CH 1.4 -1.7 ppm
Allylic (next to double bond)

R2C=CCH3
R
1.6 to 1.9 ppm
Benzylic (next to benzen ring)

ArCH2R
2.2 to 2.5 ppm
Ketone
RCCH3
ll
O
2.1 to 2.6 ppm
Alkyne RC(triple bond)CH
1.7 to 3.1 ppm
Choloralkane: RCH2Cl
3.6 to 3.8
Bromoalkane: RCH2Br
3.4 to 3.6
Iodoalkane: RCH2I
3.1 to 3.3
Ether: RCH2OR'
3.3 to 3.9
Alcohol: RCH2OH
3.3 to 4.0
Terminal Alkene: R2C=CH2
4.6 to 5.0
Internal Alkene R2C=CH
R'
5.2 5.7
Aromatic: ArH
6.0 to 9.5
Aldehyde: R-CH
ll
O
9.5 to 9.9
Alcoholic Hydroxy: ROH
.5 to 5.0 variable
Thiol: RSH
.5 to 5.0 variable
Amine: RNH2
.5 to 5.0 variable
CH3F
4.26 (chemical shift for CH3 group)
CH3OH
3.40 (chemical shift for CH3 group)
CH3Cl
3.05 (chemical shift for the CH3 group)
CH3Br
2.68 (Chemical shift for the CH3 group)
CH3I
2.16 (chemical shift for the CH3 group)
CH3H
.23 (chemical shift for the CH3 group)
C NMR Shifts: primary, secondary, tertiary, quarternary carbon
Primary: 5-20 ppm
Secondary: 20-30 ppm
Tertiary: 30-50 ppm
Quarternary: 30-45 ppm
C NMR Shift for allylic carbon
R2C=CCH2R'
R"
20-40 ppm
C NMR for Choloralkane: RCH2Cl
25-50 ppm
C NMR for bromoalkane: RCH2Br
20-40 ppm
C NMR for Ether or Alcohol
50-90 ppm
C NMR for Carboxylic acid: RCOOH
170-180 ppm
C NMR for aldehyde or ketone
190-210 ppm
C NMR for alken, aromatic
100-160 ppm
C NMR for alkyne
65-95 ppm
Alchohols
3200-3650 cm-1 (O-H Bond)
1000-1260 cm-1 (C-OR Bond)
Carboxylic Acids
2500-3300 cm-1 (O-H Bond)
1710-1760 cm-1 (C=O Bond)
Amines (R2N-H)
3250-3500 cm-1 (N-H Bond)
Alkynes
3260-3330 cm-1 (C-H Bond)
2100-2260 cm-1 (C triple bond C)
Alkenes
3050-3150 cm-1 (C-H bond)
1620-1680 cm-1 (C=C bond)
Alkanes
2840-3000 cm-1 (C-H Bond)
nitriles
2220-2260 cm-1 (C triple bond N)
aldehydes, ketones
1690-1750 cm-1 (C=O Bonds)
esters
1735-1750 cm-1 (C=O Bond)
ethers
1000-1260 cm-1 (C-OR Bond)