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Experimental data for C4H5N ((Z)-2-Butenenitrile)

22 02 02 11 45
Other names
(Z)-2-Butenenitrile; (Z)-CH3CH=CHCN; (Z)-but-2-enenitrile;
INChI INChIKey SMILES IUPAC name
InChI=1S/C4H5N/c1-2-3-4-5/h2-3H,1H3/b3-2- NKKMVIVFRUYPLQ-IHWYPQMZSA-N C/C=C\C#N (Z)-but-2-enenitrile
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 134.00   kJ mol-1 TRC
Hfg(0K) enthalpy of formation 146.60   kJ mol-1 TRC
Entropy (298.15K) entropy 309.40   J K-1 mol-1 TRC
Integrated Heat Capacity (0 to 298.15K) integrated heat capacity 17.17   kJ mol-1 TRC
Heat Capacity (298.15K) heat capacity 83.85   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 C4H5N ((Z)-2-Butenenitrile).
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 C4H5N ((Z)-2-Butenenitrile).
Product of moments of inertia moments of inertia
amu3Å6   0gm3 cm6
Geometric Data
picture of (Z)-2-Butenenitrile

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

Cartesians
Atom x (Å) y (Å) z (Å)

Atom - Atom Distances bond lengths
Distances in Å
 

Calculated geometries for C4H5N ((Z)-2-Butenenitrile).

Bond descriptions


Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond
Bond Type Count
H-C 5
C-C 2
C=C 1
C#N 1

Connectivity
Atom 1 Atom 2
C1 N2
C1 C3
C3 H4
C3 C5
C5 H6
C5 C7
C7 H8
C7 H9
C7 H10
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       4.080 NSRDS-NBS10 MW 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 C4H5N ((Z)-2-Butenenitrile).
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 C4H5N ((Z)-2-Butenenitrile).

References
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squib reference DOI
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  

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