4.3.2 SPECTOSCOPY

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How does NMR work?
involves the interaction of materials with the low-energy radio wave region of the EM spec
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what is the use of TMS?
used as the standard in chemical shift measurements - at 0 (ignore it)
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What is the need for deuterated solvents in NMR?
D is an isotope of Hydrogen/ to prevent solvents from producing unnecessary peaks on the spec as the solvents nuclei do not absorb any radio wave energy
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How are N-H and O-H protons detected?
proton exchange using D2O - both have a very large range that can interfere with the other peaks/ run two spec 1 w/o d2o and now with - identifying the group
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Where else is the NMR tech used?
in magnetic resonance imaging (MRI) used to obtain diagnostic information about internal structures
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Other cards in this set

Card 2

Front

what is the use of TMS?

Back

used as the standard in chemical shift measurements - at 0 (ignore it)

Card 3

Front

What is the need for deuterated solvents in NMR?

Back

Preview of the front of card 3

Card 4

Front

How are N-H and O-H protons detected?

Back

Preview of the front of card 4

Card 5

Front

Where else is the NMR tech used?

Back

Preview of the front of card 5

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