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Experimental data for C5H9N (Pentanenitrile)

22 02 02 11 45
Other names
1-Butyl cyanide; 1-Cyanobutane; Butane, 1-cyano-; Butyl cyanide; n-Valeronitrile; Pentanenitrile; Pentanonitrile; Valeronitrile;
INChI INChIKey SMILES IUPAC name
InChI=1S/C5H9N/c1-2-3-4-5-6/h2-4H2,1H3 RFFFKMOABOFIDF-UHFFFAOYSA-N CCCCC#N Pentanenitrile
State Conformation
1A' CS
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 11.09   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 116.54   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 (Pentanenitrile).
Rotational Constants (cm-1) rotational constants
See section I.F.4 to change rotational constant units
A B C reference comment
       

Calculated rotational constants for C5H9N (Pentanenitrile).
Product of moments of inertia moments of inertia
amu3Å6   0gm3 cm6
Geometric Data
picture of Pentanenitrile

Point Group Cs


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
rCC 1.536   1 2 1976Hellwege(II/7)
rCC 1.478   4 6 1976Hellwege(II/7) towards N
rCN 1.159   5 6 1976Hellwege(II/7)
aCCC 110.5 1 2 3 1976Hellwege(II/7)

Cartesians
Atom x (Å) y (Å) z (Å)

Atom - Atom Distances bond lengths
Distances in Å
 

Calculated geometries for C5H9N (Pentanenitrile).

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 C4
C1 H8
C1 H9
C2 C3
C2 H10
C2 H11
C3 H7
C3 H12
C3 H13
C4 C6
C4 H14
C4 H15
N5 C6
Electronic energy levels (cm-1)
Energy (cm-1) Degeneracy reference description
0 1   1A'
Dipole, Quadrupole and Polarizability
Electric dipole moment dipole
State Config State description Conf description Exp. min. Dipole (Debye) Reference comment Point Group Components
x y z total dipole quadrupole
1 1 1A' Cs True       4.120 NSRDS-NBS10 DT Cs 2 3
Experimental dipole measurement abbreviations: MW microwave; DT Dielectric with Temperature variation; DR Indirect (usually an upper limit); MB Molecular beam
Calculated electric dipole moments for C5H9N (Pentanenitrile).
Electric quadrupole moment quadrupole
State Config State description Conf description Exp. min. Quadrupole (D Å) Reference comment Point Group Components
xx yy zz dipole quadrupole
1 1 1A' Cs True       Cs 2 3

Calculated electric quadrupole moments for C5H9N (Pentanenitrile).

References
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squib reference DOI
1976Hellwege(II/7) Hellwege, KH and AM Hellwege (ed.). Landolt-Bornstein: Group II: Atomic and Molecular Physics Volume 7: Structure Data of Free Polyatomic Molecules. Springer-Verlag. Berlin. 1976.  
NSRDS-NBS10 R. D. Nelson Jr., D. R. Lide, A. A. Maryott "Selected Values of electric dipole moments for molecules in the gas phase" NSRDS-NBS10, 1967 10.6028/NBS.NSRDS.10
TRC Frenkel, M; Marsh, K.N.; Wilhoit, R.C.; Kabo, G.J.; Roganov, G.N.,Thermodynamics of Organic Compounds in the Gas State,Thermodynamics Research Center, College Station, TX, 1994  
webbook NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) 10.18434/T4D303

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