In HNMR, - What are non-equivalent hydrogens - What are the "# of Hydrogens per Peak"...

In HNMR,

- What are non-equivalent hydrogens

- What are the "# of Hydrogens per Peak"

- What is coupling and chemical shifts?

Expert Solution

- What are non-equivalent hydrogens

Answer: Those hydrogens magnetic environment is different from other hydrogens magnetic environment, hence they resonate at different frequencies. Magnetically non-equivalent hydrogens.

- What are the "# of Hydrogens per Peak"

Answer: The integration gives how many magnetically equivalent hydrogens are present in the given peak. Generally represented as (triplet, 3H), (doublet, 6H) etc. This means such specific peak is a representative of 3 hydrogens and 6 hydrogens respectively.

- What is coupling and chemical shifts?

Answer: Two different magnetically non-equivalent hydrogens spins are mutually interact with each other and causes splitting of the peak into doublet, triplet, quartet etc is called coupling.

Chemical shift corresponds to a change in the resonance frequency of the nuclei within the molecule, the resonance frequency difference is expressed as parts per million or ppm on a δ - scale ranging usually from 0 - 14 ppm.

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