NMR Spectroscopy Flashcards
1
Q
What is a nucleus partly shielded from by its electrons
A
Magnetic field
2
Q
What are you looking for in NMR spec
A
Nuclei in different environments will absorb different frequencies of energy
3
Q
What does NMR spec measure
A
Differences in energy absorbed by nuclei in different environments relative to a standard substance. The difference is called the chemical shift.
4
Q
What is the standard substance
A
TMS tetramethylsilance peak at 0
5
Q
Proton free solvent
A
Deuterated solvents their H1 atoms have been replaced by a H2 of deuterium. CCL4
