IR Spectroscopy

Name that Functional Group

100

Contains all single bonds

alkane

200

Contains a double bond.

Alkene

300

Contains an -OH group.

Alcohol

400

Contains a triple bond.

Alkene

500

Contains a carbonyl... R-double-bonded O-R

Ketone

What's in this Range?

100

Peak at 3010–3095

Double-bonded C-H

200

Peak at 2853–2962 (<3000)

Single-Bonded C-H

300

Two Medium Peaks at 3300–3500

Amine (2 N-H)

400

Sharp Peak at 1630–1780

C=O peak (carbonyl)

500

Broad Peak from 3200–3550

O-H 

What's in this range?

100

Broad peak at 3200–3550 and strong peak at 1630–1780

Carboxylic Acid

200

BONUS (DOUBLE POINTS!!!) What type of amine will not show a N-H peak on the IR Spectrum?

Tertiary Amine

300

1 Medium peak at 3300–3500

Amine (1 N-H)

400

Broad peak at 3200–3550 and strong peak at 1630–1780

carboxylic acid

500

band of short peaks 1700-2000

aromatic *may be bonus*

Where would this peak be?

100

O-H

Broad peak 3200–3550

200

Triple bonded C-H

~3300

300

Double-Bonded C-H

3010–3095

400

Single-bonded C-H

2853–2962

500

Carbonyl group

1630–1780 SHARP

Take a Break

100

When is your test?

February 16

200

What class is this SI session for?

Organic Chemistry I

300

How many chapters are on your first test?

4

400

What does IR spec. stand for?

Infrared Spectroscopy

500

What is my name?

Lauren