Spectroscopy sheet — IR, ¹H NMR and ¹³C NMR

70 rows · Octet · sample of the first 8 rows

Infrared absorptions — Spectroscopy sheet — IR, ¹H NMR and ¹³C NMR. The three tables you need next to a spectrum, laid out on one sheet: infrared absorptions with intensity and band shape, ¹H NMR chemical shifts by proton environment, and ¹³C NMR shifts by carbon environment. Each table keeps its own columns, because an IR band has an intensity and a shift does not.
Group	Absorption cm⁻¹	Intensity	Band shape
Alcohol O-H	3200-3600	strong	Broad
Carboxylic acid O-H	2500-3300	strong	Very broad, often overlaps C-H
Phenol O-H	3200-3600	strong	Broad
Primary amine N-H	3300-3500	medium	Two peaks (symmetric/asymmetric)
Secondary amine N-H	3300-3500	medium	One peak
Amide N-H	3150-3400	medium	Broad, may have two peaks
Alkane C-H (sp³)	2850-3000	strong	Sharp
Alkene =C-H (sp²)	3000-3100	medium	Sharp, just above 3000

Built from the irTable, hNmrTable and cNmrTable collections. Ranges are the source records' own, unrounded. Shifts are quoted against TMS at δ 0.