- InChI
- InChI=1S/HO2/c1-2/h1H
- InChI Key
- OUUQCZGPVNCOIJ-UHFFFAOYSA-N
- Formula
- HO2
- SMILES
- [O]O
- Molecular Weight1
- 33.01
- CAS
- 3170-83-0
- PAff : Proton affinity (kJ/mol).
- BasG : Gas basicity (kJ/mol).
- Cp,gas : Ideal gas heat capacity (J/mol×K).
- EA : Electron affinity (eV).
- IE : Ionization energy (eV).
- logPoct/wat : Octanol/Water partition coefficient.
- McVol : McGowan's characteristic volume (ml/mol).
- 1: Molecular weight from the IUPAC atomic weights tables.
Physical Properties
| Property | Value | Unit | Source |
|---|---|---|---|
| PAff | 660.00 | kJ/mol | NIST |
| BasG | 627.50 | kJ/mol | NIST |
| EA | [1.08; 1.88] | eV |
|
| EA | 1.08 ± 0.01 | eV | NIST |
| EA | 1.08 ± 0.01 | eV | NIST |
| EA | 1.08 ± 0.02 | eV | NIST |
| EA | 1.10 ± 0.09 | eV | NIST |
| EA | 1.88 ± 0.11 | eV | NIST |
| IE | [11.35; 11.67] | eV |
|
| IE | 11.35 ± 0.01 | eV | NIST |
| IE | 11.35 ± 0.01 | eV | NIST |
| IE | 11.67 ± 0.15 | eV | NIST |
| IE | 11.53 ± 0.02 | eV | NIST |
| IE | 11.54 | eV | NIST |
| logPoct/wat | -0.110 | Crippen Calculated Property | |
| McVol | 20.450 | ml/mol | McGowan Calculated Property |
Cheméo can also estimate Normal Boiling Point Temperature, Normal melting (fusion) point, Critical Temperature, Critical Pressure, Critical Volume, Enthalpy of formation at standard conditions, Enthalpy of vaporization at standard conditions, Standard Gibbs free energy of formation, Acentric Factor, Log10 of Water solubility in mol/l for this compound, but they fall outside the models' validated range, so they are not shown here. Open the prediction tool to compute them on demand.
Correlations
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Cp,gas | [34.82; 55.40] | J/mol×K | [298.00; 2000.00] |
NIST
|
| Equation | Y = A + B·t + C·t² + D·t³ + E/t², t = T/1000 Y is Cp,gas in J/mol×K, T in K | |||
| Coefficient A | 2.60096e+01 | |||
| Coefficient B | 3.48581e+01 | |||
| Coefficient C | -1.63006e+01 | |||
| Coefficient D | 3.11044e+00 | |||
| Coefficient E | -1.86110e-02 | |||
| Reference | Chase, 1998 | |||
| Comment | F=-7.140991, G=250.7660, H=2.092001; Data last reviewed in September, 1978 | |||
| Temperature range, min. | 298.00 | |||
| Temperature range, max. | 2000.00 | |||
| Cp,gas | 34.82 | J/mol×K | 298.00 | Calculated Property |
| Cp,gas | 39.40 | J/mol×K | 487.11 | Calculated Property |
| Cp,gas | 43.05 | J/mol×K | 676.22 | Calculated Property |
| Cp,gas | 45.96 | J/mol×K | 865.33 | Calculated Property |
| Cp,gas | 48.27 | J/mol×K | 1054.44 | Calculated Property |
| Cp,gas | 50.12 | J/mol×K | 1243.56 | Calculated Property |
| Cp,gas | 51.63 | J/mol×K | 1432.67 | Calculated Property |
| Cp,gas | 52.93 | J/mol×K | 1621.78 | Calculated Property |
| Cp,gas | 54.14 | J/mol×K | 1810.89 | Calculated Property |
| Cp,gas | 55.40 | J/mol×K | 2000.00 | Calculated Property |
| Cp,gas | [55.20; 60.76] | J/mol×K | [2000.00; 6000.00] |
NIST
|
| Equation | Y = A + B·t + C·t² + D·t³ + E/t², t = T/1000 Y is Cp,gas in J/mol×K, T in K | |||
| Coefficient A | 4.58751e+01 | |||
| Coefficient B | 8.81435e+00 | |||
| Coefficient C | -1.63603e+00 | |||
| Coefficient D | 9.80530e-02 | |||
| Coefficient E | -1.01738e+01 | |||
| Reference | Chase, 1998 | |||
| Comment | F=-26.90210, G=266.5260, H=2.092001; Data last reviewed in September, 1978 | |||
| Temperature range, min. | 2000.00 | |||
| Temperature range, max. | 6000.00 | |||
| Cp,gas | 55.20 | J/mol×K | 2000.00 | Calculated Property |
| Cp,gas | 57.38 | J/mol×K | 2444.44 | Calculated Property |
| Cp,gas | 58.83 | J/mol×K | 2888.89 | Calculated Property |
| Cp,gas | 59.79 | J/mol×K | 3333.33 | Calculated Property |
| Cp,gas | 60.40 | J/mol×K | 3777.78 | Calculated Property |
| Cp,gas | 60.74 | J/mol×K | 4222.22 | Calculated Property |
| Cp,gas | 60.88 | J/mol×K | 4666.67 | Calculated Property |
| Cp,gas | 60.89 | J/mol×K | 5111.11 | Calculated Property |
| Cp,gas | 60.83 | J/mol×K | 5555.56 | Calculated Property |
| Cp,gas | 60.76 | J/mol×K | 6000.00 | Calculated Property |
Similar Compounds
Find more compounds similar to Hydroperoxy radical.
Sources
- Cheméo Relay (1.0, beta) Beta: served but experimental, data-limited and below our cross-validation release bar; the Joback value is recommended where available.
- Crippen Method
- Crippen Method
- McGowan Method
- NIST Webbook
Note: Cheméo is only indexing the data, follow the source links to retrieve the latest data. The source is also providing more information like the publication year, authors and more.
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