Splitting of a signal in a proton NMR spectrum tells us the number of chemically non-equivalent hydrogens in the immediate vicinity of the hydrogen giving the signal. Predict the number of lines exhibited by hydrogens at the labeled positions in a first-order NMR spectrum. (Make the approximation that all coupling constants are equal.)
1)Splitting of a signal in a proton NMR spectrum tel
The number of lines exhibited by hydrogen(s) a is .
The number of lines exhibited by hydrogen(s) b is .
The number of lines exhibited by hydrogen(s) c is .
2)Splitting of a signal in a proton NMR spectrum tel
The number of lines exhibited by hydrogen(s) a is .
The number of lines exhibited by hydrogen(s) b is .
The number of lines exhibited by hydrogen(s) c is .
3)Splitting of a signal in a proton NMR spectrum tel
The number of lines exhibited by hydrogen(s) a is .
The number of lines exhibited by hydrogen(s) b is .
The number of lines exhibited by hydrogen(s) c is .
4)Splitting of a signal in a proton NMR spectrum tel
The number of lines exhibited by hydrogen(s) a is .
The number of lines exhibited by hydrogen(s) b is .
The number of lines exhibited by hydrogen(s) c is .

Respuesta :

1) The compound's structure is provided below. As of right now, the proton is only connected to protons that are located far apart in the chemical shift.

We will determine how many lines the hydrogen atoms in the given structure exhibit. A: Signal splitting within a proton The number of chemically incompatible compounds is revealed by the NMR spectra. A: Only protons that are close to one another in chemical shift are connected to the proton. a proton The number of hydrogens in a chemical that is present in a different environment can be determined using NMR (nuclear magnetic resonance) spectroscopy. The splitting pattern adheres to the n+1 rule, where n is the number of nearby protons in this case.

NMR can tell you how many hydrogen neighbours there are for a specific hydrogen or group.

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