Molecule
Name
Nitrogen
IUPAC name
Dinitrogen
Secondary names
Dinitrogen, Diatomic nitrogen, N2
InChI
InChI=1S/N2/c1-2
InChI key
IJGRMHOSHXDMSA-UHFFFAOYSA-N
CAS number
7727-37-9
Comments
natural N2
Structure and atomic composition
Formula
N2
Chemical formula
N2
Structural formula
[N#N]
Charge
0
Unpaired electrons
0
  Atom Name Number
N Nitrogen 2
Relations
  • no
Isotope mixture type
terrestrial abundance
Isotopes
  Isotope Mole fraction
14N2 0.9927332
14N15N 0.0072535
15N2 1.325e-05
Spin type
unique
Spin quantum numbers
0
Molar mass
28.01340642 g/mol
State STP
gas
Protic
aprotic
Polarity
nonpolar
Dipole
0.0 D
Molecule symmetry
Dinfh
Case
diatomic
Vibrations number
1
Vibrations
Label Mode Bond Symmetry Degeneracy Fundamental frequency Observed frequency Observed frequency Harmonic frequency Activity IR Activity Raman Strength Comments
V1 stretching N≡N Σ+ no 2330.0 2358.57 inactive active ia vvw intensity: quadrupolar - Raman: 2331 cm−1 (gas), 2329 cm−1 (liq)
Comments
Vibrations of the main isotope: 14N2. Data from HITRAN database and NIST Chemistry WebBook
Chemical bonds
  Bond Number
N≡N 1