spliting pattern
chemical shifts
Usage of TMS
100
Name of signal with no splitting

singlet

100

rock, paper, scissor SHOOT
(I can't think of a question)

I choose paper

100

Why is TMS a good solvent in terms of other compounds' solubility in it?

Organic compounds are very soluble in TMS

200

CH3-CH2-CH3
Name the splitting pattern of the hydrogen on the 2nd carbon

multiplet

200

Unit of chemical shift

ppm (parts per million)

200

Formula for TMS

Si(CH3)4

300

2,2-dimethyl propane
name the splitting pattern of the 2nd carbon in the propane chain

no signals (dummy)

300

Symbol for chemical shift

delta

300

Why is TMS being inert a good thing?

Doesn't react with sample compound

400

The rule used to predict the splitting of a signal

n + 1 rule

400

Direction of "downfield"

To the left, higher values
400
Appearance of the TMS signal in a H-NMR spectra

and reason

Appearance: Large singlet peak at 0 ppm
Reason: All hydrogen atoms in same environment and no adjacent hydrogen atoms

500

After how many peaks can the splitting pattern be classified as a multiplet

after 4 peaks (quartet)

500

which one has a higher shift, hydrogen attached to an aldehyde carbon or a hydrogen attached to an alkane carbon

aldehyde carbon

500

Why is TMS being volatile a good thing?

Easy to remove from sample

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