Zenarthra
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http://filestore.aqa.org.uk/subjects...W-QP-JAN11.PDF
http://filestore.aqa.org.uk/subjects...-INS-JAN13.PDF

Why is question 5b) d= 3.1-3.9 and not d= 1.2-1.4

thanks
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EierVonSatan
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1.2-1.4 ppm is peaks you'd find more in an alkane. You have an oxygen connected to the CH2 group, this will increase the ppm to be more like the CH2 in ethanol
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Plantagenet Crown
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OCHn typically has a shift of 3-4 ppm.
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Zenarthra
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(Original post by EierVonSatan)
1.2-1.4 ppm is peaks you'd find more in an alkane. You have an oxygen connected to the CH2 group, this will increase the ppm to be more like the CH2 in ethanol
(Original post by Plantagenet Crown)
OCHn typically has a shift of 3-4 ppm.

Any of you guys have a guide for this comparing ppm please?

thanks.
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Plantagenet Crown
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(Original post by Zenarthra)
Any of you guys have a guide for this comparing ppm please?

thanks.
There should be standard HNMR shifts on online tables. I'll post a link to one, but it's by no means exhaustive.

nmr_h_table.png
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