Free interactive chemistry · GUIDE-C13

¹³C NMR

Each line in a ¹³C spectrum is one carbon environment.

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How to use this simulation

Choose a molecule.
Count the lines and read their shifts in the table.

What to notice

Proton-decoupled ¹³C spectra show single lines (no splitting).
C=O carbons appear far downfield, around 170–220 ppm.

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How many carbon environments does propanone have?

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