Wavenumbers of fundamental vibrational modes of molecules in HITRAN (cm^-1), illustrated for the most abundant isotopologue and for the lowest electronic states. (Clicking on the molecule names will link to the pages of the Virtual Planetary Laboratory, prepared by R.A. Butler.)

Molecule

v₁

v₂

v₃

v₄

v₅

v₆

v₇

v₈

v₉

v₁₀

v₁₁

v₁₂

Acetylene (C₂H₂)

3374

1974

3289

612

729

-

-

-

-

-

-

-

Ammonia (NH₃)

3337

950

3444

1627

-

-

-

-

-

-

-

-

Carbon dioxide (CO₂)

1388

667

2349

-

-

-

-

-

-

-

-

-

Carbon monoxide (CO)

2143

-

-

-

-

-

-

-

-

-

-

-

Carbon tetrachloride (CCl₄)

464

217

799

316

-

-

-

-

-

-

-

-

Carbonyl fluoride (COF₂)

1945

963

582

1243

619

774

-

-

-

-

-

-

Carbonyl sulfide (OCS)

859

520

2062

-

-

-

-

-

-

-

-

-

Chlorine nitrate (ClONO₂)

1737

1293

809

780

563

435

262

711

120

-

-

-

Chlorine oxide (ClO)

884

-

-

-

-

-

-

-

-

-

-

-

Ethane (C₂H₆)

2954

1388

995

289

2896

1379

2969

1468

823

2985

1469

822

Ethylene (C₂H₄)

3026

1623

1342

1023

3103

1236

949

943

3106

826

2989

1444

Formaldehyde (H₂CO)

2782

1746

1500

2843

1249

1167

-

-

-

-

-

-

Formic acid (HCOOH)

3570

2943

1770

1387

1229

1106

625

1033

638

-

-

-

Hydrogen bromide (HBr)

2559

-

-

-

-

-

-

-

-

-

-

-

Hydrogen chloride (HCl)

2886

-

-

-

-

-

-

-

-

-

-

-

Hydrogen cyanide (HCN)

3311

713

2097

-

-

-

-

-

-

-

-

-

Hydrogen fluoride (HF)

3961

-

-

-

-

-

-

-

-

-

-

-

Hydrogen iodide (HI)

2230

-

-

-

-

-

-

-

-

-

-

-

Hydrogen peroxide (H₂O₂) (τ =1)

3593

1396

866

259

3560

1236

-

-

-

-

-

-

Hydrogen sulfide (H₂S)

2615

1183

2626

-

-

-

-

-

-

-

-

-

Hydroperoxy radical (HO₂)

3436

1392

1098

-

-

-

-

-

-

-

-

-

Hydroxyl radical (OH)

3569

-

-

-

-

-

-

-

-

-

-

-

Hypobromous acid (HOBr)

3615

1163

620

-

-

-

-

-

-

-

-

-

Hypochlorous acid (HOCl)

3609

1239

724

-

-

-

-

-

-

-

-

-

Methane (CH₄)

2917

1534

3019

1306

-

-

-

-

-

-

-

-

Methanol (CH₃OH)

3681

2999

2844

1477

1454

1340

1074

1033

2970

1465

1145

270

Methyl chloride (CH₃Cl)

2937

1355

732

3039

1452

1017

-

-

-

-

-

-

Methyl cyanide (CH₃CN)

2954

2267

1385

920

3009

1448

1041

362

-

-

-

-

Nitric acid (HNO₃)

3551

1710

1326

1303

879

647

580

763

458

-

-

-

Nitric oxide (NO)

1875

-

-

-

-

-

-

-

-

-

-

-

Nitrogen (N₂)

2330

-

-

-

-

-

-

-

-

-

-

-

Nitrogen dioxide (NO₂)

1320

750

1617

-

-

-

-

-

-

-

-

-

Nitrogen oxide cation (NO⁺ )

2344

-

-

-

-

-

-

-

-

-

-

-

Nitrous oxide (N₂O)

2224

589

1285

-

-

-

-

-

-

-

-

-

Oxygen (O₂)

1556

-

-

-

-

-

-

-

-

-

-

-

Ozone (O₃)

1103

701

1042

-

-

-

-

-

-

-

-

-

Phosphine (PH₃)

2321

992

2327

1118

-

-

-

-

-

-

-

-

Sulfur dioxide (SO₂)

1152

518

1362

-

-

-

-

-

-

-

-

-

Sulfur hexafluoride (SF₆)

775

643

948

615

524

346

-

-

-

-

-

-

Water (H₂O)

3657

1595

3756

-

-

-

-

-

-

-

-

-

Notes:
 Doubly-degenerate modes are in bold red and triply-degenerate modes are in italicized brown.
  Shaded background in cell indicates infrared-inactive mode.