Nitrosyl cyanide
Chemical compound
From Wikipedia, the free encyclopedia
Nitrosyl cyanide, a blue-green gas,[1] is the compound with the molecular formula ONCN. The compound has been invoked as a product of the oxidation of cyanamide catalyzed by the enzyme glucose oxidase.[2]
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| Names | |
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| Preferred IUPAC name
Nitrous cyanide | |
| Identifiers | |
3D model (JSmol) |
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PubChem CID |
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CompTox Dashboard (EPA) |
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| Properties[1] | |
| CN2O | |
| Molar mass | 56.024 g·mol−1 |
| Appearance | blue-green gas |
| Boiling point | −40 °C (−40 °F; 233 K) |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Structure, synthesis, reactivity
The structure of nitrosyl cyanide is planar. It is strongly bent at the internal nitrogen, analogous to the structure of nitrosyl chloride. The C-N-O angle is 113°. The NCN angle is 170°.[1]
The compound can be created by the reaction of nitrosyl chloride and silver cyanide at low temperatures. It is not typically isolated, but trapped by Diels-Alder reactions, e.g. with butadiene. Cycloadditions occur across the N=O bond. It forms a reversible adduct with 9,10-dimethylantracene.[1]
Related compound
- Nitryl cyanide (O2NCN), a colorless gas (b.p. 7 °C).[3]