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 $NH_3$
- Formula
- $NH_3$
- 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. $NH_3$ $A_{1}$ no 3337.0 3336.2 3337.2 3505.7 active active s observed split between symmetric and antisymmetric levels V2 bending sym. $NH_3$ $A_{1}$ no 950.0 935.5 968.3 1022.0 active active vs observed split between symmetric and antisymmetric levels V3 stretching $NH_3$ $E$ double 3444.0 3443.6 3443.9 3573.1 active active s observed split between symmetric and antisymmetric levels V4 deformation $NH_3$ $E$ 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: $^{14}NH_3$. Data from NIST Chemistry WebBook and Benedict & Plyler (1957)
- Publications