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Experimental data for CHClCCl2 (Trichloroethylene)

22 02 02 11 45
Other names
1,1,2-Trichloroethene; 1,1,2-Trichloroethylene; 1,1-Dichloro-2-chloroethylene; 1,2,2-Trichloroethylene; 1-Chloro-2,2-dichloroethylene; Acetylene trichloride; Ethene, trichloro-; Ethinyl trichloride; Ethylene trichloride; Ethylene, trichloro-; TCE; Trichloroethene; Trichloroethylene; Tricloroetilene; Trichloraethen; Trichlorethene; Trilen; Vitran;
INChI INChIKey SMILES IUPAC name
InChI=1S/C2HCl3/c3-1-2(4)5/h1H XSTXAVWGXDQKEL-UHFFFAOYSA-N ClC(Cl)=CCl 1,1,2-Trichloroethene
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 -17.50 3.00 kJ mol-1 2002Man:123
Hfg(0K) enthalpy of formation -14.00 3.00 kJ mol-1 2002Man:123
Entropy (298.15K) entropy 324.96   J K-1 mol-1 Gurvich
Integrated Heat Capacity (0 to 298.15K) integrated heat capacity 16.61   kJ mol-1 Gurvich
Heat Capacity (298.15K) heat capacity 80.07   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' 3082   1996KIS/PSZ:125      
2 A' 1586   1996KIS/PSZ:125      
3 A' 1247   1996KIS/PSZ:125      
4 A' 931   1996KIS/PSZ:125      
5 A' 840   1996KIS/PSZ:125       reassigned (switch with 10)
6 A' 630   1996KIS/PSZ:125      
7 A' 384   1996KIS/PSZ:125      
8 A' 277   1996KIS/PSZ:125      
9 A' 178   1996KIS/PSZ:125      
10 A" 780   1996KIS/PSZ:125       reassigned (switch with 5)
11 A" 451   1996KIS/PSZ:125      
12 A" 215   1996KIS/PSZ:125      

vibrational zero-point energy: 5300.5 cm-1 (from fundamental vibrations)
Calculated vibrational frequencies for CHClCCl2 (Trichloroethylene).
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
0.13162 0.05115 0.03681 1998Kis/Bia:10263

Calculated rotational constants for CHClCCl2 (Trichloroethylene).
Product of moments of inertia moments of inertia
1.933256E+07amu3Å6   8.852325092832E-113gm3 cm6
Geometric Data
picture of Trichloroethylene

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 1.337   1 2 1996KIS/PSZ:125
rCCl 1.720   2 5 1996KIS/PSZ:125 Cl cis to H
rCH 1.080   1 3 1996KIS/PSZ:125
aCCCl 120.1 1 2 5 1996KIS/PSZ:125
aCCCl 124.4 1 2 6 1996KIS/PSZ:125
aHCC 120.6 2 1 3 1996KIS/PSZ:125
rCCl 1.712   2 6 1996KIS/PSZ:125 Cl trans to H
rCCl 1.714   1 4 1996KIS/PSZ:125
aCCCl 122.5 2 1 4 1996KIS/PSZ:125

Cartesians
Atom x (Å) y (Å) z (Å)
C1 -1.0601 -0.3741 0.0000
C2 0.0000 0.4407 0.0000
H3 -2.0625 0.0280 0.0000
Cl4 -0.9094 -2.0814 0.0000
Cl5 -0.2228 2.1462 0.0000
Cl6 1.6277 -0.0899 0.0000

Atom - Atom Distances bond lengths
Distances in Å
  C1 C2 H3 Cl4 Cl5 Cl6
C1   1.33701.08001.71402.65572.7028
C2 1.3370   2.10332.68101.72001.7120
H3 1.08002.1033   2.40402.80553.6920
Cl4 1.71402.68102.4040   4.28303.2253
Cl5 2.65571.72002.80554.2830   2.9025
Cl6 2.70281.71203.69203.22532.9025  

Calculated geometries for CHClCCl2 (Trichloroethylene).

Experimental Bond Angles (degrees) from cartesians bond angles

atom1 atom2 atom3 angle         atom1 atom2 atom3 angle
C1 C2 Cl5 120.100 C1 C2 Cl6 124.400
C2 C1 H3 120.600 C2 C1 Cl4 122.500
H3 C1 Cl4 116.900 Cl5 C2 Cl6 115.500

Bond descriptions


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

Connectivity
Atom 1 Atom 2
C1 C2
C1 H3
C1 Cl4
C2 Cl5
C2 Cl6
Electronic energy levels (cm-1)
Energy (cm-1) Degeneracy reference description
0 1   1A'

Ionization Energies (eV)
Ionization Energy I.E. unc. vertical I.E. v.I.E. unc. reference
9.460 0.020 9.600   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           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 CHClCCl2 (Trichloroethylene).
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 CHClCCl2 (Trichloroethylene).
Electric dipole polarizability (Å3) polarizability
alpha unc. Reference
9.751   1998Gus/Rui:163

Calculated electric dipole polarizability for CHClCCl2 (Trichloroethylene).

References
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squib reference DOI
1996KIS/PSZ:125 Z Kisiel, L. Pszczolkowski, "Assignment and Analysis of the mm-wave Rotational Spectrum of Trichloroethylene: Observation of a New, Extended R-band and an Overview of High -J,R-Type Bands" J. Mol. Spect. 178, 125-137 (1996) 10.1006/jmsp.1996.0165
1998Gus/Rui:163 M Gussoni, R Rui, G Zerbi "Electronic and relaxation contribution to linear molecular polarizability. An analysis of the experimental values" J. Mol. Struct. 447 (1998) 163-215 10.1016/S0022-2860(97)00292-5
1998Kis/Bia:10263 Z Kisiel, E Bialkowska-Jaworska, L Pszczolkowski Nuclear quadrupole coupling in Cl2C=CHCl and Cl2C=CH2: Evidence for systematic differences in orientations between internuclear and field gradient axes for terminal quadrupolar nuclei" J. Chem. Phys. 109(3) 10263-10272, 1998 10.1063/1.477722
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  
webbook NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) 10.18434/T4D303

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