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Experimental data for CF2CCl2 (difluorodichloroethylene)

22 02 02 11 45
Other names
Ethene, 1,1-dichloro-2,2-difluoro-; 1,1-Dichloro-2,2-difluoroethylene; CFC 1112a;
INChI INChIKey SMILES IUPAC name
InChI=1S/C2Cl2F2/c3-1(4)2(5)6 QDGONURINHVBEW-UHFFFAOYSA-N FC(F)=C(Cl)Cl
State Conformation
1A1 C2V
Enthalpy of formation (Hfg), Entropy, Integrated heat capacity (0 K to 298.15 K) (HH), Heat Capacity (Cp)
Property Value Uncertainty units Reference Comment
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 A1 1749   webbook      
2 A1 1032          
3 A1 622          
4 A1 434          
5 A1 258          
6 A2 167          
7 B1 564           B1 and B2 switched
8 B1 323           B1 and B2 switched
9 B2 1327           B1 and B2 switched
10 B2 989           B1 and B2 switched
11 B2 459           B1 and B2 switched
12 B2 192           B1 and B2 switched

vibrational zero-point energy: 4058.0 cm-1 (from fundamental vibrations)
Calculated vibrational frequencies for CF2CCl2 (difluorodichloroethylene).
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 CF2CCl2 (difluorodichloroethylene).
Product of moments of inertia moments of inertia
amu3Å6   0gm3 cm6
Geometric Data
picture of difluorodichloroethylene

Point Group C2v


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
rCF 1.315 0.015 1 3 1987Kuchitsu(II/15)
rCC 1.345 0.025 1 2 1987Kuchitsu(II/15)
rCCl 1.706 0.008 2 5 1987Kuchitsu(II/15)
aFCF 112.1 2.5 3 1 4 1987Kuchitsu(II/15)
aClCCl 119 0.9 5 2 6 1987Kuchitsu(II/15)
aCCCl 120.5 1 1 2 5 derived from source
aCCF 124 2.5 2 1 3 derived from source

Cartesians
Atom x (Å) y (Å) z (Å)
C1 0.0000 0.0000 1.0697
C2 0.0000 0.0000 -0.2443
F3 0.0000 1.1151 1.8218
F4 0.0000 -1.1151 1.8218
Cl5 0.0000 1.4699 -1.1102
Cl6 0.0000 -1.4699 -1.1102

Atom - Atom Distances bond lengths
Distances in Å
  C1 C2 F3 F4 Cl5 Cl6
C1   1.31401.34501.34502.62922.6292
C2 1.3140   2.34782.34781.70601.7060
F3 1.34502.3478   2.23012.95343.9088
F4 1.34502.34782.2301   3.90882.9534
Cl5 2.62921.70602.95343.9088   2.9399
Cl6 2.62921.70603.90882.95342.9399  

Calculated geometries for CF2CCl2 (difluorodichloroethylene).

Experimental Bond Angles (degrees) from cartesians bond angles

atom1 atom2 atom3 angle         atom1 atom2 atom3 angle
C1 C2 Cl5 120.500 C1 C2 Cl6 120.500
C2 C1 F3 124.000 C2 C1 F4 124.000
F3 C1 F4 112.000 Cl5 C2 Cl6 119.000

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-F 2
C-Cl 2

Connectivity
Atom 1 Atom 2
C1 C2
C1 F3
C1 F4
C2 Cl5
C2 Cl6
Electronic energy levels (cm-1)
Energy (cm-1) Degeneracy reference description
0 1   1A1

Ionization Energies (eV)
Ionization Energy I.E. unc. vertical I.E. v.I.E. unc. reference
9.650 0.030     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 1A1 C2v True           C2v 1 2
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 CF2CCl2 (difluorodichloroethylene).
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 1A1 C2v True       C2v 1 2

Calculated electric quadrupole moments for CF2CCl2 (difluorodichloroethylene).

References
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squib reference DOI
1987Kuchitsu(II/15) Kuchitsu (ed.), Landolt-Bornstein: Group II: Atomic and Molecular Physics Volume 15: Structure Data of Free Polyatomic Molecules. Springer-Verlag, Berlin, 1987.  
webbook NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) 10.18434/T4D303

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