Molecule
- Name
- Nitrogen dioxide
- IUPAC name
- Nitrogen dioxide
- Secondary names
- Nitrogen oxide, Nitrogen(IV) oxide, NO2
- InChI
- InChI=1S/NO2/c2-1-3
- InChI key
- JCXJVPUVTGWSNB-UHFFFAOYSA-N
- CAS number
- 10102-44-0
- Comments
- natural $NO_2$
- Formula
- $\bullet NO_2$
- Chemical formula
- NO2
- Structural formula
- N(=O)[O] or [N+](=O)[O-]
- Charge
- 0
- Unpaired electrons
- 1
- Relations
-
- no
- Isotope mixture type
- terrestrial abundance
- Spin type
- unique
- Spin quantum numbers
- 0
- Molar mass
- 46.0055 $g/mol$
- State STP
- liquid
- Protic
- aprotic
- Polarity
- polar
- Dipole
- 0.316 $D$
- Molecule symmetry
- C2v
- Case
- nonlinear-triatomic
- Vibrations number
- 3
- Vibrations
-
Label Mode Bond Symmetry Degeneracy Fundamental frequency Observed frequency Observed frequency Harmonic frequency Activity IR Activity Raman Strength Comments V1 stretching sym. $\bullet NO_2$ $A_{1}$ no 1318.0 1318.0 active active w 1320 $cm^{-1}$ in VPL database V2 bending $\bullet NO_2$ $A_{1}$ no 750.0 749.65 active active s V3 stretching asym. $\bullet NO_2$ $B_{1}$ no 1618.0 1617.8 active active vs - Comments
- Vibrations of the main isotope: $^{14}N^{16}O_2$. Data from NIST Chemistry WebBook
- Publications