IR spectroscopy Flashcards
1
Q
Is IR a quantitative or qualitative technique?
A
qualitative
2
Q
What is spectroscopy?
A
Study of the interaction between a radiation (wave) and matter (molecules etc)
3
Q
Is the position of atoms stationary?
A
No
4
Q
How many modes of vibration seen in IR?
A
2
5
Q
What is resonance?
A
Frequency of the absorbed radiation matches the frequency of the bond or group that vibrate
6
Q
What can resonance be related to?
A
The strength of the bond and the mass of the atoms at either end of it
7
Q
What is the frequency of vibration given by?
A
Hooke’s law
8
Q
Name the functional group variations
A
C-H: aldehyde
O-H: alcohol and phenols
N-H: amine and ammonium
