Cyanoacetylene
Organic compound (HC≡C–C≡N)
From Wikipedia, the free encyclopedia
Cyanoacetylene is an organic compound with the formula C3HN or H−C≡C−C≡N. It is the simplest cyanopolyyne. Cyanoacetylene has been detected by spectroscopic methods in interstellar clouds,[2] in the coma of comet Hale–Bopp and in the atmosphere of Saturn's moon Titan,[3] where it sometimes forms expansive fog-like clouds.[4]
| Names | |
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| Preferred IUPAC name
Prop-2-ynenitrile | |
Other names
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| Identifiers | |
3D model (JSmol) |
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| ChemSpider | |
| ECHA InfoCard | 100.313.512 |
PubChem CID |
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| UNII | |
CompTox Dashboard (EPA) |
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| Properties | |
| C3HN | |
| Molar mass | 51.048 g·mol−1 |
| Appearance | Colorless liquid |
| Melting point | 5 °C (41 °F; 278 K) |
| Boiling point | 42.5 °C (108.5 °F; 315.6 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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Cyanoacetylene is one of the molecules that was produced in the Miller–Urey experiment.[5]
- H−C≡C−H + H−C≡N → H−C≡C−C≡N + H2
Nickel carbonyl catalyzes cyanoacetylene carboalkoxylation to cyanoacrylate esters.[6]
See also
- Dicyanoacetylene, N≡C−C≡C−C≡N
- Diacetylene, H−C≡C−C≡C−H
- Cyanogen, N≡C−C≡N
- Hydrocyanic acid, H−C≡N
- Polyyne, R−(C≡C)n−R

