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Unformatted text preview: R-C.H 9.0 - r0. Ol" 3.0 - 5.0b o T R.C.OH I 1.0 - 12.0 1l R-C-N-H I 2.1 -2.5h a For hydrogens shown n, -f-r, if the hydrogen is of a methyl group rhe shift is generally at the low end of the range, if H is in a methyleni: group it is in the intermediate range, and for a methine group the shift is typically at the high end of the range b the chemical shift of these groups is variable, depending not onty on the chemical environment, but also on concentration, temDeralure and solvent...
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- Fall '10