¹H NMR (AQA A-Level Chemistry): Flashcards
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What is NMR used for?
What is NMR used for?
Analyze hydrogen environments in molecules
Why use deuterated solvents in NMR?
Why use deuterated solvents in NMR?
Deuterium doesn't produce signals in same range as
Chemical shift unit
Chemical shift unit
ppm (parts per million)
Where do shielded protons appear?
Where do shielded protons appear?
Lower ppm (upfield)
Where do deshielded protons appear?
Where do deshielded protons appear?
Higher ppm (downfield)
What does integration show in NMR?
What does integration show in NMR?
Relative number of equivalent protons
rule
rule
No. of peaks = neighboring non-equivalent protons
Singlet means how many neighboring H?
Singlet means how many neighboring H?
0 neighboring H atoms
Doublet means how many neighboring H?
Doublet means how many neighboring H?
1 neighboring H atom
Triplet means how many neighboring H?
Triplet means how many neighboring H?
2 neighboring H atoms