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Chemistry
Why does roofing occur despite the difference in chemical shift?
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[QUOTE="Popz, post: 6411368, member: 683420"] [B]TL;DR Summary:[/B] This is a spectrum of di-n-butylamine. I'm really not good with spin systems and would like your help. I thought secondary spin systems would only occur when the chemical shift is similar to the coupling constant. But this doesn't seem to be the case for the triplets. [ATTACH type="full" alt="IMG_20201030_125822.jpg"]271878[/ATTACH] J is 7.2 and 7.1 for the triplets (7.2 for the pentet, 7.1 for the sextet), chemical shift 0.93 and 2.62Also is it a AMSX or AMX spinsystem? [/QUOTE]
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Why does roofing occur despite the difference in chemical shift?
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