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two triplets and no quartet?

4 1 7k
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Hello all, I have spent approximately 4 hours trying to analyze an H NMR consisting of two doublets of doublets (pe...
Posted: Kelsey O'Dell 11 / Updated: joenmr 1 Feb 18 '15 at 10:44

Why is chemical shift range of 13C wider than of 1H nuclei?

6 3 18538
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Why the chemical shift range of 1H nmr is ~20 ppm wheras for 13C nmr it is ~230 ppm? ...
Posted: sameer deka 31 / Updated: Yoan Monneau 136 Feb 15 '11 at 11:23

Inverted Spinning Sidebands

2 0 6k
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Hello, My 1H MAS NMR spectrum comes out with the right spinning side band pointing up and the left one pointing down. ...
Updated: NMRUser61581 13 Jan 03 '11 at 10:04

J-Coupling In Proton NMR

1 1 7k
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I'm currently a college student taking Organic Chem and I've no idea how to figure out the J-coupling for H-NMR and neit...
Posted: Scott 11 / Updated: Evgeny Fadeev 5771 Aug 07 '10 at 11:37

Are there ways to explain magnetic-field dependent chemical shift?

4 1 19862
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Hi everyone, I was wondering whether anyone could help me to explain why the chemical shifts in my proton and carbon NM...
Posted: Guga Hollows 11 / Updated: Arkadiusz Leniak 238 May 31 '14 at 15:46

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