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C nmr solvent table
The carbon in the CH 3 group is attached to 3 hydrogens and a carbon. The electron pulling effect of the oxygen atom increases the chemical shift slightly from the one shown in the table to a value of about But they aren't all the same height. Without thinking, it is tempting to go for the R 2 CH2 with peaks in the 16 - 25 region. This isn't something which we need to look at in detail for the purposes of this topic. The molecular formula is C 4 H 10 O, and there are only two peaks. Both of these would produce four peaks. Contributors and Attributions Jim Clark Chemguide.