Orgo 13-14

Home

High Energy

High Frequency = High wave # = Low wavelength

Low Energy

Low frequency = Low wave # = High wavelegth

Right of 3000

sp3 C-C

Left of 3000

sp2 C=C

3300

sp triple

what number/peak represents OH on the IR spectrum?

3200-3600

what number/peak represents Carboxylic Acid on the IR spectrum?

2500-3300- Strong peak, very broad

what number/peak represents Amine (NH) on the IR spectrum?

3200-3600 less strong

what number/peak represents Amine (NH2) on the IR spectrum?

3200-3600 2 peaks

what number/peak represents ketones/ carbonyl C=O on the IR spectrum?

1700

what number/peak represents Aldehyde on the IR spectrum?

1700 + 2820+2720

what number/peak represents Carboxylic Acid/ Ester on the IR spectrum?

Left of 1700

what number/peak represents Amide on the IR spectrum?

Right of 1700

Number of signals in NMR

number of same protons

Integration value NMR

relative number of protons

Splitting of NMR

Number of neighboring protons

0-1.5 in NMR

Saturated C-C

1.5 - 2.5 in NMR

Allylic

2.5-4.5 in NMR

C-Z (Z= O, N Halogen)

4.5- 6.5 in NMR

Vinylic

6.5-8.0 in NMR

Benzene

9.0- 12 in NMR

Carboxylic acid or ketone