Organic analysis Flashcards
1
Q
What is mass spectroscopy?
A
Used to find the Mr of compounds
High resolution = decimals
2
Q
Why do atoms and chemical bonds absorb infrared radiation?
A
Constantly vibrating
3
Q
What is the fingerprint region?
A
Below 1500
4
Q
How is the fingerprint region used to identify compounds?
A
It gets matched to a database on a computer to identify the compound accurately
5
Q
What does each functional group look like on an infrared graph?
A
O-H (alcohol) is a smooth U shape at 3230-3550
O-H (acid) is a larger U shape at 2500-3000
C-H is a jagged and narrow peak
C=O is a very thin pin-like U shape at 1680-1750
C=C is very close to C=O and even thinner at 1620-1680
