Molecule
- Name
- Hydrogen
- IUPAC name
- (1H2)Dihydrogen
- Secondary names
- Dihydrogen, diprotium, molecular hydrogen, H2
- InChI
- InChI=1S/H2/h1H/i1+0H
- InChI key
- UFHFLCQGNIYNRP-HXFQMGJMSA-N
- Comments
- $^1H_2$ isotope
- Formula
- $^1H_2$
- Chemical formula
- H2
- Isotopic formula
- [1]H2
- Structural formula
- [1H][1H]
- Charge
- 0
- Unpaired electrons
- 0
- Relations
-
- no
- Isotope mixture type
- pure isotope
- Spin type
- equilibrated
- Spin quantum numbers
- 0, 1
- Equilibrium meta/para ratio
- 3 (3/1)
- Molar mass
- 2.01565 $g/mol$
- State STP
- gas
- Protic
- protic
- 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 $^1H-^1H$ $A_{1}$ no 4161.0 4401.21 inactive active ia intensity is vvw - Comments
- Data from VPL database and NIST Chemistry WebBook