I just started learning about proton NMR. According to Molbase, the HNMR data for tert-amyl alcohol (2-methylbutan-1-ol) shows four kinds of protons at 0.9 ppm, 1.24 ppm, 1.44, and 3.65 ppm.
However, it seems contradictory to what I learnt, since the protons on secondary carbon (1.44 ppm) are downfield to the protons on tertiary carbon (1.24 ppm), which confuses me, since I learnt that protons on tertiary carbons experience more de-shielding.
Is there something I have missed out in my thought process?
EDIT: Thanks to @orthocresol and @Buttonwood for pointing out my error. My revised question would then be: Between the two types of protons on secondary carbons (1.24 and 1.44 ppm), why is it that the one at 1.44 ppm is more deshielded?
From what I understand, it is because carbon is more electronegative than hydrogen, therefore causing the deshielding effect, but at the same time from organic chemistry I learnt that alkyl groups are electron donating, which should cause shielding. Is there some misconception in my thinking?