1H_NMR_handout - 1H NMR Correlation Chart RCH=O RO-CH RS-CH...

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Unformatted text preview: 1H NMR Correlation Chart RCH=O RO-CH RS-CH Alcohols HO-C-H PhO-CH FC-H Ar-C-H ClC-H IC-H Aromatics R2C=CH2 CH Saturated alkanes RCH=CHR R-CC-H R2C=CRCH O BrC-H Esters R-CO2C-H O2N-C-H Amides R-CONH PhO-H RO-H R2N-H R-C-C-H NC-C-H R2N-C-H = 2.0 8.0 7.0 6.0 5.0 4.0 3.0 1.0 R-CO2H 11.0 10.0 9.0 0 ppm () aromatic protons - integration gives a 1.5:1 ratio of aliphatic to aromatic protons matching the 6:4 ratio in p-xylene. Integration the height is a measure of the relative number of protons b protons (aromatic) are farther downfield (higher ppm value) than methyl groups (aliphatic). TMS Standard defines 0.0 a protons (aliphatic) are farther upfield (lower ppm value) than aromatic protons. Sometimes as in this case- the integration results are given directly in terms of the number of protons in the molecule TMS Standard defines 0.0 The a proton is farther downfield (higher ppm value) since it is on the same carbon as 2 electronegative Cl atoms. The two b protons are farther upfield (lower ppm value) since they are attached to a carbon with only one electronegative Cl atom. C2H5Br triplet, 3H quartet, 2H C9H12 6H 1H 5H ...
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1H_NMR_handout - 1H NMR Correlation Chart RCH=O RO-CH RS-CH...

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