Spectroscopy Ranges for Orgo Functional Groups

HNMR: Alkyl group

HNMR: ~0.8 - 1.8 ppm

HNMR: H’s adjacent to (not on): alkenes, aromatic rings, or C=O

HNMR: ~1.9 - 3 ppm

HNMR: H’s on the same carbon as e-neg atom

HNMR: ~3 - 4.5 ppm

HNMR: H’s on alkenes

HNMR: ~4.5 - 7.5 ppm

HNMR: H’s on aromatic rings

HNMR: ~6.5 - 8 ppm

HNMR: Aldehyde

HNMR: ~9 - 10 ppm

HNMR: H of a carboxylic acid

HNMR: 11 - 12.5 ppm

IR: C=O stretch

IR: 1650 - 1800 cm^-1, sharp, strongish intensity

IR: C≡N

IR: 2100-2260 cm^-1, sharp and strong

IR: C-H stretch

IR: 2850-3100 cm^-1, strong intensity

IR: COO-H stretch

IR: 2500-3500 cm^-1, broad, strong signal

IR: O-H stretch

IR: 3200-3600 cm^-1, broad, strong signal

IR: N-H stretch

IR: 3300-3500 cm^-1, sharp and strong

IR: aryl group

IR: 1400 - 2000 cm^-1

IR: C=C

IR: 1600-1700 cm^-1