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Experimental data for C5H9N (Propanenitrile, 2,2-dimethyl-)

22 02 02 11 45
Other names
2,2-Dimethylpropanenitrile; 2,2-Dimethylpropionitrile; 2-Cyano-2-methylpropane; Pivalonitrile; Propanenitrile, 2,2-dimethyl-; tert-Butylcyanide; tert-Butylnitrile; Trimethylacetonitrile;
INChI INChIKey SMILES IUPAC name
InChI=1S/C5H9N/c1-5(2,3)4-6/h1-3H3 JAMNHZBIQDNHMM-UHFFFAOYSA-N CC(C)(C)C#N Pivalonitrile
State Conformation
1A1 C3V
Enthalpy of formation (Hfg), Entropy, Integrated heat capacity (0 K to 298.15 K) (HH), Heat Capacity (Cp)
Property Value Uncertainty units Reference Comment
Hfg(298.15K) enthalpy of formation -3.31   kJ mol-1 webbook
Hfg(0K) enthalpy of formation     kJ mol-1 webbook
Entropy (298.15K) entropy     J K-1 mol-1  
Integrated Heat Capacity (0 to 298.15K) integrated heat capacity     kJ mol-1  
Heat Capacity (298.15K) heat capacity 124.22   J K-1 mol-1 TRC
Information can also be found for this species in the NIST Chemistry Webbook
Vibrational levels (cm-1) vibrations
Mode Number Symmetry Frequency Intensity Comment Description
Fundamental(cm-1) Harmonic(cm-1) Reference (km mol-1) unc. Reference

Calculated vibrational frequencies for C5H9N (Propanenitrile, 2,2-dimethyl-).
Gas-phase IR spectra can be found in the NIST Chemistry Webbook here.
Rotational Constants (cm-1) rotational constants
See section I.F.4 to change rotational constant units
A B C reference comment
  0.09173 0.09173 1962Nug/Man:965-971

Calculated rotational constants for C5H9N (Propanenitrile, 2,2-dimethyl-).
Product of moments of inertia moments of inertia
amu3Å6   0gm3 cm6
Geometric Data
picture of Propanenitrile, 2,2-dimethyl-

Point Group C3v


Internal coordinates
distances (r) in Å, angles (a) in degrees, dihedrals (d) in degrees
Description Value unc. Connectivity Reference Comment
Atom 1 Atom 2 Atom 3 Atom 4
rCN 1.159 0.001 2 6 1962Nug/Man:965-971

Cartesians
Atom x (Å) y (Å) z (Å)

Atom - Atom Distances bond lengths
Distances in Å
 

Calculated geometries for C5H9N (Propanenitrile, 2,2-dimethyl-).

Bond descriptions


Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond
Bond Type Count
H-C 9
C-C 4
C#N 1

Connectivity
Atom 1 Atom 2
C1 C2
C1 C3
C1 C4
C1 C5
C2 N6
C3 H7
C3 H10
C3 H11
C4 H8
C4 H12
C4 H13
C5 H9
C5 H14
C5 H15
Electronic energy levels (cm-1)
Energy (cm-1) Degeneracy reference description
0 1   1A1
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