Molecule
- Name
- Ammonia
- IUPAC name
- Ammonia
- Secondary names
- Azane, Hydrogen nitride, Trihydrogen nitride, NH3
- InChI
- InChI=1S/H3N/h1H3
- InChI key
- QGZKDVFQNNGYKY-UHFFFAOYSA-N
- CAS number
- 7664-41-7
- Comments
- natural NH3
- Formula
- NH3
- Chemical formula
- NH3
- Structural formula
- [H][N]([H])[H]
- Charge
- 0
- Unpaired electrons
- 0

- Relations
-
- no
- Spin type
- equilibrated
- Spin quantum numbers
- 1/2, 3/2
- Molar mass
- 17.0305 g/mol
- State STP
- gas
- Protic
- protic
- Polarity
- polar
- Dipole
- 1.4718 D
- Molecule symmetry
- C3v
- Case
- symmetric-top
- Vibrations number
- 4
- Vibrations
-
Label Mode Bond Symmetry Degeneracy Fundamental frequency Observed frequency Observed frequency Harmonic frequency Activity IR Activity Raman Strength Comments V1 stretching sym. NH3 A1 no 3337.0 3336.2 3337.2 3505.7 active active s observed split between symmetric and antisymmetric levels V2 bending sym. NH3 A1 no 950.0 935.5 968.3 1022.0 active active vs observed split between symmetric and antisymmetric levels V3 stretching NH3 E double 3444.0 3443.6 3443.9 3573.1 active active s observed split between symmetric and antisymmetric levels V4 deformation NH3 E double 1627.0 1626.1 1627.4 1689.7 active active vs observed split between symmetric and antisymmetric levels - Comments
- Vibrations of the main isotope: 14NH3. Data from NIST Chemistry WebBook and Benedict & Plyler (1957)
- Publications