00:01
Hello everyone, this question has been asked about the 13 carbon nmr.
00:06
So the question that is being asked that is the number of the carbon signals in the spectrum corresponds to what? so always remember that each carbon atom in a carbon 13 spectrum corresponds to the unique carbon environment in a molecule.
00:22
For example, if i write any structure like this cooh over here, i have cl group and for example that is i have one ch2 group.
00:37
So how many carbons do we have over here? one, two and three.
00:43
Now remember these three carbons have different environment because this this carbon is attached to cl, it has hydrogen and this is attached to what? an acid.
00:53
So this carbon will have the definitely high delta ppm value but these three have different different environments.
01:01
So we can write that the number of carbon signals in a spectrum, the number of carbon carbon signal in the spectrum corresponds to what? corresponds to, so the answer would be unique carbon environment, unique carbon environment of the molecule or in the molecule, in the molecule.
01:49
Why the unique carbon environment? because this carbon, the carbon number one will give one signal that is the signal a, the carbon two will give signal b and the carbon three would give signal c.
01:59
That means different signals has been obtained...