Pivalonitrile is a nitrile with the semi-structural formula (CH3)3CCN, abbreviated t-BuCN. This aliphatic organic compound is a clear, colourless liquid that is used as a solvent and as a labile ligand in coordination chemistry. Pivalonitrile is isomeric with tert-butyl isocyanide but the two compounds do not exist in chemical equilibrium, unlike its silicon analog trimethylsilyl cyanide. [3]
Names | |
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Preferred IUPAC name
2,2-Dimethylpropanenitrile[2] | |
Other names
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Identifiers | |
3D model (JSmol)
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1361449 | |
ChemSpider | |
ECHA InfoCard | 100.010.122 |
EC Number |
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PubChem CID
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UNII | |
UN number | 3273 |
CompTox Dashboard (EPA)
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Properties | |
C5H9N | |
Molar mass | 83.134 g·mol−1 |
Appearance | Colourless liquid |
Density | 752 mg mL−1 |
Melting point | 15 °C (59 °F; 288 K) |
Boiling point | 106 °C (223 °F; 379 K) |
Refractive index (nD)
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1.3774 |
Thermochemistry | |
Heat capacity (C)
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179.37 J K−1 mol−1 |
Std molar
entropy (S⦵298) |
232.00 J K−1 mol−1 |
Std enthalpy of
formation (ΔfH⦵298) |
−39.9 kJ mol−1 |
Std enthalpy of
combustion (ΔcH⦵298) |
−3.2146–−3.2132 MJ mol−1 |
Hazards | |
GHS labelling: | |
Danger | |
H225, H301, H311, H331 | |
P210, P261, P280, P301+P310, P311 | |
Flash point | 4 °C (39 °F; 277 K) |
Related compounds | |
Related alkanenitriles
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Related compounds
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DBNPA |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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References
edit- ^ "Pivalonitrile | C5H9N | ChemSpider". www.chemspider.com. Retrieved 19 August 2022.
- ^ "Pivalonitrile - Compound Summary". PubChem Compound. USA: National Center for Biotechnology Information. 26 March 2005. Identification. Retrieved 8 June 2012.
- ^ Booth, M. R.; Frankiss, S. G. (1968). "Trimethylsilyl isocyanide". Chem. Commun. (21): 1347–1348. doi:10.1039/C19680001347.