MD: NMR

Question 1

What kind of solvents are samples dissolved in?

Answer 1

Solvents without lone protons, like Deuterated solvents.

Deuterium (isotope of H) that has a positive mass number- so no spin.

Question 2

Give 3 things that an NMR spectrum shows you

Answer 2

1- The different proton environments
(chemical shifts)

2- The relative number of protons (relative peak area)

3- The number of protons adjacent to a particular proton
(Splitting pattern)

Question 3

What is chemical shift measured relative to?

Answer 3

Tetramethylsilane
(TMS)
Si(CH3)4