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Experimental data for C2H2ClF (1-chloro-1-fluoroethylene)

22 02 02 11 45
Other names
Ethylene, 1-chloro-1-fluoro-; Ethene, 1-chloro-1-fluoro-;
INChI INChIKey SMILES IUPAC name
1S/C2H2ClF/c1-2(3)4/h1H2 FPBWSPZHCJXUBL-UHFFFAOYSA-N C=C(Cl)F
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
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' 3159   2016Cha/Sto:8369      
2 A' 3072          
3 A' 1656          
4 A' 1375          
5 A' 1188          
6 A' 948          
7 A' 700          
8 A' 432          
9 A' 370          
10 A" 836          
11 A" 700          
12 A" 515          

vibrational zero-point energy: 7475.0 cm-1 (from fundamental vibrations)
Calculated vibrational frequencies for C2H2ClF (1-chloro-1-fluoroethylene).
Rotational Constants (cm-1) rotational constants
See section I.F.4 to change rotational constant units
A B C reference comment
0.35630 0.17019 0.11502 1993Alo/Les:4

Calculated rotational constants for C2H2ClF (1-chloro-1-fluoroethylene).
Product of moments of inertia moments of inertia
686836.6amu3Å6   3.14500538826375E-114gm3 cm6
Geometric Data
picture of 1-chloro-1-fluoroethylene

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 1.327 0.003 1 2 2009Leu/Mar:116
rCCl 1.704 0.002 1 4 2009Leu/Mar:116
rCF 1.341 0.003 1 3 2009Leu/Mar:116
rCH 1.080 0.001 1 6 2009Leu/Mar:116 Cl side
rCH 1.082 0.001 2 5 2009Leu/Mar:116 F side
aCCCl 126.29 0.22 2 1 4 2009Leu/Mar:116
aCCF 121.75 0.28 2 1 3 2009Leu/Mar:116
aHCC 119.18 0.18 1 2 6 2009Leu/Mar:116 Cl side
aHCC 119.25 0.14 2 1 3 2009Leu/Mar:116 F side

Cartesians
Atom x (Å) y (Å) z (Å)
C1 0.0000 0.4410 0.0000
C2 -0.9843 1.3306 0.0000
F3 1.2883 0.8139 0.0000
Cl4 -0.1727 -1.2544 0.0000
H5 -0.7454 2.3858 0.0000
H6 -2.0075 0.9840 0.0000

Atom - Atom Distances bond lengths
Distances in Å
  C1 C2 F3 Cl4 H5 H6
C1   1.32671.34121.70422.08272.0796
C2 1.3267   2.33062.70941.08191.0803
F3 1.34122.3306   2.53232.57033.3002
Cl4 1.70422.70942.5323   3.68502.8943
H5 2.08271.08192.57033.6850   1.8863
H6 2.07961.08033.30022.89431.8863  

Calculated geometries for C2H2ClF (1-chloro-1-fluoroethylene).

Experimental Bond Angles (degrees) from cartesians bond angles

atom1 atom2 atom3 angle         atom1 atom2 atom3 angle
C1 C2 H5 119.350 C1 C2 H6 119.180
C2 C1 F3 121.750 C2 C1 Cl4 126.290
F3 C1 Cl4 111.960 H5 C2 H6 121.470

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 1
C-Cl 1
H-C 2

Connectivity
Atom 1 Atom 2
C1 C2
C1 F3
C1 Cl4
C2 H5
C2 H6
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
10.700 0.200     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           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 C2H2ClF (1-chloro-1-fluoroethylene).
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 C2H2ClF (1-chloro-1-fluoroethylene).

References
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squib reference DOI
1993Alo/Les:4 JL Alonso, AG Lesarri, LA Leal, JC Lopez "The Millimeter-Wave Spectra of 1-Chloro-1-fluoroethylene and cis-1-chloro-2-fluoroethylene" J. Mol. Spect. 162, 4-19 (1993) 10.1006/jmsp.1993.1265
2009Leu/Mar:116 HO Leung, MD Marshall, AL Vasta, NC Craig "Microwave spectra of eigth isotopic modifications of 1-chloro-1-fluoroethylene" J. Mol. Spect. 253 (2009) 116-121 10.1016/j.jms.2008.11.002
2016Cha/Sto:8369 AP Charmet, P Stoppa, N Tasinato, S Giorgianni, A Gambi "Study of the Vibrational Spectra and Absorption Cross Sections of 1-Chloro-1-fluoroethene by a Joint Experimental and Ab Initio Approach" 10.1021/acs.jpca.6b07426
webbook NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) 10.18434/T4D303

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