NMR Spectroscopy (OCR A-Level Chemistry A): Flashcards

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NMR Spectroscopy
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NMR spectroscopy components

Magnetic field + RF radiation

Nuclear spin requirement

Odd number of nucleons

Why 12^{12}C invisible in NMR

Even number of nucleons

Proton NMR definition

1^1H NMR spectroscopy

Resonance in NMR

Nuclei flip between spin states by absorbing energy

TMS chemical shift value

0 ppm

Chemical shift measured in

Parts per million (ppm)

Chemical shift direction

Increases right to left

Purpose of deuterated solvents

Prevent solvent H interference in spectrum

Is NMR destructive?

No, sample can be recovered

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