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Molecule
Liquid Hydrogen
CAS: 1333-74-0 · H2
2D Structure
3D Structure
Loading 3D structure...
Basic Information
- CAS Registry Number
- 1333-74-0
- Molecular Formula
- H2
- Molecular Mass
- 2.02 g/mol
Identifiers
CAS Registry Number
1333-74-0
SMILES
[HH]
InChI Key
UFHFLCQGNIYNRP-UHFFFAOYSA-N
InChI
InChI=1S/H2/h1H
Names and Synonyms
- Liquid Hydrogen Synonym
- Hydrogen Synonym
- Orthohydrogen Synonym
- Parahydrogen Synonym
- Hydrogen (H2) Synonym
- Hydrogen molecule Synonym
- Molecular hydrogen Synonym
- Mol. hydrogen Synonym
- Dihydrogen Synonym
- Hydrogen gas Synonym
- Hydrogen element Synonym
All Properties
Comprehensive physical and chemical properties
| Property | Value | Source |
|---|---|---|
| Molecular Mass | 2.02 g/mol | CAS Common Chemistry |
| 2.016 g/mol | RDKit | |
| Density | 0.08 g/cm³ | CAS Common Chemistry |
| 0.07631 g/cm3 | CAS Common Chemistry | |
| Wikipedia Url | https://en.wikipedia.org/wiki/Liquid_hydrogen | CAS Common Chemistry |
| Boiling Point | -252.77 °C | CAS Common Chemistry |
| Canonical SMILES | [H][H] | CAS Common Chemistry |
| InChI | InChI=1S/H2/h1H | CAS Common Chemistry |
| InChI Key | InChIKey=UFHFLCQGNIYNRP-UHFFFAOYSA-N | CAS Common Chemistry |
| Melting Point | -259.2 °C | CAS Common Chemistry |
| Name | Hydrogen | CAS Common Chemistry |
| Liquid hydrogen | CAS Common Chemistry | |
| Heavy Atom Count | 0 | RDKit |
| Hydrogen Bond Acceptors | 0 | RDKit |
| Hydrogen Bond Donors | 0 | RDKit |
| Rotatable Bonds | 0 | RDKit |
| Aromatic Ring Count | 0 | RDKit |
| Topological Polar Surface Area | 0.0 Ų | RDKit |
| LogP | 0.246 | RDKit |
| 0.25 | chempirical lib | |
| Molar Refractivity | 2.114 cm³/mol | RDKit |
| Ring Count | 0 | RDKit |
| Formal Charge | 0 | RDKit |
| Fraction Csp3 | 0.0 | RDKit |
| Exact Mass | 2.015650064 g/mol | RDKit |
Spectral Data
NMR, IR, and Mass spectral data
Predicting NMR spectra...
10 ppm
9
8
7
6
5
4
3
2
1
0 ppm
| Shift (ppm) | Multiplicity | Integration | Assignment |
|---|
200 ppm
180
160
140
120
100
80
60
40
20
0 ppm
| Shift (ppm) | DEPT | Assignment |
|---|
Note: These NMR spectra are predicted computationally and may differ from experimental data. Predictions are based on chemical environment analysis.
External Resources
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MW = 2.02 g/mol; density = 0.080 g/mL. Edit any field — others recompute live.
