Nitroxyl
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Nitroxyl (common name) or azanone (IUPAC name)[2] is the chemical compound HNO. It is well known in the gas phase.[3][4] Nitroxyl can be formed as a short-lived intermediate in the solution phase. The conjugate base, NO−, nitroxide anion, is the reduced form of nitric oxide (NO) and is isoelectronic with dioxygen. The bond dissociation energy of H−NO is 49.5 kcal/mol (207 kJ/mol), which is unusually weak for a bond to the hydrogen atom.
Quick Facts Names, Identifiers ...
Names | |
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IUPAC name
Azanone | |
Systematic IUPAC name
Oxidanimine[1] | |
Other names
Hydrogen nitroxide Hydrogen oxonitrate(I) | |
Identifiers | |
3D model (JSmol) |
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ChEMBL | |
ChemSpider |
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MeSH | Nitroxyl |
PubChem CID |
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UNII | |
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Properties | |
HNO | |
Molar mass | 31.014 g·mol−1 |
log P | 0.74 |
Structure | |
Digonal | |
Bent | |
Thermochemistry | |
Heat capacity (C) |
33.88 J K−1 mol−1 |
Std molar entropy (S⦵298) |
220.91 J K−1 mol−1 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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