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Experimental data for CH2ClCH2Cl (Ethane, 1,2-dichloro-)

22 02 02 11 45
Other names
α,β-Dichloroethane; 1,2-Bichloroethane; 1,2-DCE; 1,2-Dichloorethaan; 1,2-Dichlor-aethan; 1,2-Dichlorethane; 1,2-Dichloroethane; 1,2-Dicloroetano; 1,2-Ethylene dichloride; Aethylenchlorid; Bichlorure D'ethylene; Borer sol; Brocide; Chlorure D'ethylene; Cloruro di ethene; Destruxol borer-sol; Dichloremulsion; Di-chlor-mulsion; Dichloro-1,2-ethane; Dichloroethylene; Dutch liquid; Dutch oil; EDC; ENT 1,656; Ethane dichloride; Ethane, 1,2-dichloro-; Ethylene chloride; Ethylene dichloride; Freon 150; dichloroethane;
INChI INChIKey SMILES IUPAC name
InChI=1S/C2H4Cl2/c3-1-2-4/h1-2H2 WSLDOOZREJYCGB-UHFFFAOYSA-N ClCCCl 1,2-Dichloroethane
State Conformation
1Ag C2H
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 -132.00 3.50 kJ mol-1 2002Man:123
Hfg(0K) enthalpy of formation -120.10 3.50 kJ mol-1 2002Man:123
Entropy (298.15K) entropy 305.96   J K-1 mol-1 TRC
Integrated Heat Capacity (0 to 298.15K) integrated heat capacity 16.33   kJ mol-1 TRC
Heat Capacity (298.15K) heat capacity 77.32   J K-1 mol-1 TRC
Barrier to Internal Rotation 45.3   kJ mol-1 1975Miz/Shi:2085 V1=1866.7, V2=-1110.9, V3=1917.5 cm-1
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 Ag 2957   Shim      
2 Ag 1445   Shim      
3 Ag 1304   Shim      
4 Ag 1052   Shim      
5 Ag 754   Shim      
6 Ag 300   Shim      
7 Au 3005   Shim      
8 Au 1123   Shim      
9 Au 773   Shim      
10 Au 123   Shim      
11 Bg 3005   Shim      
12 Bg 1264   Shim      
13 Bg 989   Shim      
14 Bu 2983   Shim      
15 Bu 1461   Shim      
16 Bu 1232   Shim      
17 Bu 728   Shim      
18 Bu 222   Shim      

vibrational zero-point energy: 12360.0 cm-1 (from fundamental vibrations)
Calculated vibrational frequencies for CH2ClCH2Cl (Ethane, 1,2-dichloro-).
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

Calculated rotational constants for CH2ClCH2Cl (Ethane, 1,2-dichloro-).
Product of moments of inertia moments of inertia
amu3Å6   0gm3 cm6
Geometric Data
picture of Ethane, 1,2-dichloro-

Point Group C2h


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 1.531   1 2 1998Kuc ra
rCCl 1.790   1 3 1998Kuc ra
rCH 1.112   1 5 1998Kuc ra
aCCCl 109 1 2 4 1998Kuc
aHCC 113.2 2 1 5 1998Kuc

Cartesians
Atom x (Å) y (Å) z (Å)

Atom - Atom Distances bond lengths
Distances in Å
 

Calculated geometries for CH2ClCH2Cl (Ethane, 1,2-dichloro-).

Bond descriptions


Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond
Bond Type Count
H-C 4
C-C 1
C-Cl 2

Connectivity
Atom 1 Atom 2
C1 C2
C1 Cl3
C1 H5
C1 H6
C2 Cl4
C2 H7
C2 H8
Electronic energy levels (cm-1)
Energy (cm-1) Degeneracy reference description
0 1   1Ag

Ionization Energies (eV)
Ionization Energy I.E. unc. vertical I.E. v.I.E. unc. reference
11.070 0.040 11.400 0.100 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 1Ag C2h True           C2h 0 3
1 2 1A C2 False           C2 1 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 CH2ClCH2Cl (Ethane, 1,2-dichloro-).
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 1Ag C2h True       C2h 0 3
1 2 1A C2 False       C2 1 3

Calculated electric quadrupole moments for CH2ClCH2Cl (Ethane, 1,2-dichloro-).
Electric dipole polarizability (Å3) polarizability
alpha unc. Reference
8.000   1998Gus/Rui:163

Calculated electric dipole polarizability for CH2ClCH2Cl (Ethane, 1,2-dichloro-).

References
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squib reference DOI
1975Miz/Shi:2085 S Mizushima, T Shimanouchi, I Harada, Y Abe, H takeuchi, "Infrared and Raman Spectra of 1,2-Dichloroethane and its Deuterium Compound in the Gaseous, Liquid, and Solid States" Can. J. Phys. 53, 1975, 2085. 10.1139/p75-259
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
1998Kuc K Kuchitsu(ed) "Structure of Free Polyatomic Molecules - Basic Data" Springer, Berlin, 1998 10.1007/978-3-642-45748-7 
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
Shim Shimanouchi, T. , Tables of Molecular Vibrational Frequencies, Consolidated Volu 10.6028/NBS.NSRDS.39
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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