9. Infrared Spectroscopy Flashcards
1
Q
what is the hydrogen deficiency index used for?
A
calculation to find the degrees of unsaturation
2
Q
what does the answer to the calculation of hydrogen deficiency mean?
A
the number of pi bonds or rings
3
Q
what does it mean with the HDI is 4?
A
there is a benzene ring
3
Q
what does it mean when the HDI is 1?
A
there is one double bond or ring
4
Q
what does it mean when the HDI is 2?
A
there is two double bonds or a triple bond
5
Q
what is the formula for HDI?
A
2C+2+N-H-X/2
6
Q
what happens to the functional groups in a molecule when infrared red light is shined on the molecule?
A
the functional groups absorb different amounts of energy from the light
7
Q
what is the infrared red spectroscopy used for?
A
to identify functional groups within a molecule
