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Experimental data for C2H3Cl (Ethene, chloro-)

22 02 02 11 45
Other names
Chlorethene; Chlorethylene; Chloroethene; Chloroethylene; Chlorure de vinyle; Cloruro di vinile; Ethene, chloro-; Ethylene monochloride; Ethylene, chloro-; Monochloroethene; Monochloroethylene; Vinyl chloride monomer; Vinylchlorid; Winylu chlorek; VC; Vinyl C monomer; Vinyl chloride; Vinyl chloride, inhibited; Trovidur; Vinyle(chlorure de); VCM; Vinile;
INChI INChIKey SMILES IUPAC name
InChI=1S/C2H3Cl/c1-2-3/h2H,1H2 BZHJMEDXRYGGRV-UHFFFAOYSA-N ClC=C Chloroethene
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 22.00 3.00 kJ mol-1 2002Man:123
Hfg(0K) enthalpy of formation   3.00 kJ mol-1 2002Man:123
Entropy (298.15K) entropy 264.02   J K-1 mol-1 Gurvich
Integrated Heat Capacity (0 to 298.15K) integrated heat capacity 11.82   kJ mol-1 Gurvich
Heat Capacity (298.15K) heat capacity 53.68   J K-1 mol-1 Gurvich
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
1 A' 3121   1966Herzberg      
2 A' 3086   1966Herzberg      
3 A' 3030   1966Herzberg      
4 A' 1608   1966Herzberg      
5 A' 1368   1966Herzberg      
6 A' 1279   1966Herzberg      
7 A' 1030   1966Herzberg      
8 A' 720   1966Herzberg      
9 A' 395   1966Herzberg      
10 A" 941   1966Herzberg      
11 A" 896   1966Herzberg      
12 A" 620   1966Herzberg      

vibrational zero-point energy: 9047.0 cm-1 (from fundamental vibrations)
Calculated vibrational frequencies for C2H3Cl (Ethene, chloro-).
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
1.87324 0.20114 0.18164 1966Herzberg

Calculated rotational constants for C2H3Cl (Ethene, chloro-).
Product of moments of inertia moments of inertia
70000.91amu3Å6   3.20532189693375E-115gm3 cm6
Geometric Data
picture of Ethene, chloro-

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 1.332   1 2 1966Herzberg
rCCl 1.726   1 3 1966Herzberg
rCH 1.090   1 4 1966Herzberg on CHCl end
rCH 1.079   2 5 1966Herzberg on CH2 end
aCCCl 122.3 2 1 3 1966Herzberg
aHCC 123.8 2 1 4 1966Herzberg H on CHCl end
aHCC 119.5 1 2 6 1966Herzberg H trans to Cl
aHCC 121 1 2 5 1966Herzberg H cis to Cl

Cartesians
Atom x (Å) y (Å) z (Å)
C1 0.0000 0.0000 1.3320
C2 0.0000 0.0000 0.0000
Cl3 0.0000 1.4589 2.2543
H4 0.0000 -0.9058 1.9384
H5 0.0000 0.9249 -0.5557
H6 0.0000 -0.9391 -0.5313

Atom - Atom Distances bond lengths
Distances in Å
  C1 C2 Cl3 H4 H5 H6
C1   1.33201.72601.09002.10212.0866
C2 1.3320   2.68522.13951.07901.0790
Cl3 1.72602.6852   2.38572.86033.6756
H4 1.09002.13952.3857   3.09382.4699
H5 2.10211.07902.86033.0938   1.8642
H6 2.08661.07903.67562.46991.8642  

Calculated geometries for C2H3Cl (Ethene, chloro-).

Experimental Bond Angles (degrees) from cartesians bond angles

atom1 atom2 atom3 angle         atom1 atom2 atom3 angle
C1 C2 H5 121.000 C1 C2 H6 119.500
C2 C1 Cl3 122.300 C2 C1 H4 123.800
Cl3 C1 H4 113.900 H5 C2 H6 119.500

Bond descriptions


Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond
Bond Type Count
C=C 1
C-Cl 1
H-C 3

Connectivity
Atom 1 Atom 2
C1 C2
C1 Cl3
C1 H4
C2 H5
C2 H6
Electronic energy levels (cm-1)
Energy (cm-1) Degeneracy reference description
0 1   1A'
46000 1 1966Herzberg

Ionization Energies (eV)
Ionization Energy I.E. unc. vertical I.E. v.I.E. unc. reference
9.990 0.020 10.200   webbook
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 1.420     1.450 NSRDS-NBS10 MW (μa) DT (μt) 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 C2H3Cl (Ethene, chloro-).
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 C2H3Cl (Ethene, chloro-).
Electric dipole polarizability (Å3) polarizability
alpha unc. Reference
6.410   HCP_Polar

Calculated electric dipole polarizability for C2H3Cl (Ethene, chloro-).

References
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squib reference DOI
1966Herzberg Herzberg, G., Electronic spectra and electronic structure of polyatomic molecules,Van Nostrand,New York, 1966  
2002Man:123 JA Manion "Evaluated Enthalpies of Formation of the Stable Closed Shell C1 and C2 Chlorinated Hydrocarbons" J. Phys. Chem. Ref. Data 31(1), 123-172, 2002 10.1063/1.1420703
Gurvich Gurvich, L.V.; Veyts, I. V.; Alcock, C. B., Thermodynamic Properties of Individual Substances, Fouth Edition, Hemisphere Pub. Co., New York, 1989  
HCP_Polar TM Miller, Handbook of Chemistry and Physics Online (http://hbcponline.com/faces/documents/10_04/10_04_0001.xhtml)  
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
webbook NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) 10.18434/T4D303

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