- InChI
- InChI=1S/C5H5NO/c7-6-4-2-1-3-5-6/h1-5H
- InChI Key
- ILVXOBCQQYKLDS-UHFFFAOYSA-N
- Formula
- C5H5NO
- SMILES
- [O-][n+]1ccccc1
- Molecular Weight1
- 95.10
- Other Names
-
- pyridine N-oxide
- pyridine oxide
- pyridine-1-oxide
- PAff : Proton affinity (kJ/mol).
- BasG : Gas basicity (kJ/mol).
- ΔfH°gas : Enthalpy of formation at standard conditions (kJ/mol).
- ΔfH°solid : Solid phase enthalpy of formation at standard conditions (kJ/mol).
- ΔsubH° : Enthalpy of sublimation at standard conditions (kJ/mol).
- IE : Ionization energy (eV).
- logPoct/wat : Octanol/Water partition coefficient.
- McVol : McGowan's characteristic volume (ml/mol).
- Tfus : Normal melting (fusion) point (K).
- 1: Molecular weight from the IUPAC atomic weights tables.
Physical Properties
| Property | Value | Unit | Source |
|---|---|---|---|
| PAff | 923.60 | kJ/mol | NIST |
| BasG | 892.90 | kJ/mol | NIST |
| ΔfH°gas | [87.90; 87.90] | kJ/mol |
|
| ΔfH°gas | 87.90 ± 2.50 | kJ/mol | NIST |
| ΔfH°gas | 87.90 ± 2.50 | kJ/mol | NIST |
| ΔfH°solid | [7.70; 8.60] | kJ/mol |
|
| ΔfH°solid | 7.70 | kJ/mol | NIST |
| ΔfH°solid | 8.60 ± 2.30 | kJ/mol | NIST |
| ΔfH°solid | 8.60 ± 2.30 | kJ/mol | NIST |
| ΔsubH° | [79.30; 81.90] | kJ/mol |
|
| ΔsubH° | 81.90 ± 1.50 | kJ/mol | NIST |
| ΔsubH° | 79.30 ± 1.00 | kJ/mol | NIST |
| ΔsubH° | 79.30 ± 1.00 | kJ/mol | NIST |
| ΔsubH° | 79.30 ± 1.00 | kJ/mol | NIST |
| IE | [8.38; 8.46] | eV |
|
| IE | 8.38 ± 0.02 | eV | NIST |
| IE | 8.46 | eV | NIST |
| IE | 8.38 ± 0.02 | eV | NIST |
| logPoct/wat | 0.320 | Crippen Calculated Property | |
| McVol | 73.400 | ml/mol | McGowan Calculated Property |
| Tfus | 336.95 | K | Thermal behaviour of nitrogen oxides relevant to oxidative denitrogenation |
Cheméo can also estimate Normal Boiling Point Temperature, Critical Temperature, Critical Pressure, Critical Volume, 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.
Similar Compounds
Find more compounds similar to Pyridine, 1-oxide.
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
- Thermal behaviour of nitrogen oxides relevant to oxidative denitrogenation
- 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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