NMR Spectroscopy Key Terms and Definitions Flashcards
1
Q
Why is TMS used?
A
tetramethylsilane has twelve equivalent hydrogens, so gives a strong peak so is used as as standard for chemical shift measurement
2
Q
CDCl3 Solvent
A
sample is dissolved in this so that H doesn’t add any additional peaks to the system
3
Q
Relative peak area
A
area under peak gives ratio of H atoms in each environment
4
Q
Chemical Shift
A
gives position of peak, number of peaks = number of proton environments in molecule
