Ethylene, 1,2-dichloro-, (Z)-

• Formula: C₂H₂Cl₂
• Molecular weight: 96.943
• IUPAC Standard InChI: InChI=1S/C2H2Cl2/c3-1-2-4/h1-2H/b2-1- Copy

  
• IUPAC Standard InChIKey: KFUSEUYYWQURPO-UPHRSURJSA-N Copy
• CAS Registry Number: 156-59-2
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
  View 3d structure (requires JavaScript / HTML 5)
• Stereoisomers:
  • Ethylene, 1,2-dichloro-, (E)-
  • 1,2-Dichloroethylene
• Other names: Ethene, 1,2-dichloro-, (Z)-; (Z)-1,2-Dichloroethylene; cis-Di-1,2-Chloroethylene; cis-Dichloroethylene; cis-1,2-Dichloroethene; cis-1,2-Dichloroethylene; 1,2-cis-Dichloroethylene; (Z)-CHCl=CHCl; (Z)-1,2-Dichloroethene; 1,2-cis-Dichloroethene; Acetylene dichloride, cis-; 1,cis-2-Dichloroethene; Ethylene, 1,2-dichloro-, cis-; Ethene, 1,2-dichloro-, (1Z)-; HCC 1130c; R 1130c
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Reaction thermochemistry data
  • Mass spectrum (electron ionization)
  • UV/Visible spectrum
  • References
  • Notes
• Other data available:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Phase change data
  • Henry's Law data
  • Gas phase ion energetics data
  • IR Spectrum
  • Vibrational and/or electronic energy levels
  • Gas Chromatography
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
• Options:
  • Switch to SI units

Data at NIST subscription sites:

• NIST / TRC Web Thermo Tables, professional edition (thermophysical and thermochemical data)

NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.

Reaction thermochemistry data

Go To: Top, Mass spectrum (electron ionization), UV/Visible spectrum, References, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

=

By formula: C₂H₂Cl₂ = C₂H₂Cl₂

=

By formula: C₂H₂Cl₂ = C₂H₂Cl₂

=

By formula: C₂H₂Cl₂ = C₂H₂Cl₂

 +  =

By formula: C₂H₂Cl₂ + Cl₂ = C₂H₂Cl₄

=  + 

By formula: C₂H₂Cl₂ = H₂ + C₂Cl₂

=  + 

By formula: C₂H₂Cl₂ = C₂HCl + HCl

=  + 

By formula: C₂H₂Cl₂ = C₂H₂ + Cl₂

 +  =

By formula: C₂H₂Cl₂ + HCl = C₂H₃Cl₃

Mass spectrum (electron ionization)

Go To: Top, Reaction thermochemistry data, UV/Visible spectrum, References, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

Notice: This spectrum may be better viewed with a Javascript and HTML 5 enabled browser.

For Zoom

1.) Enter the desired X axis range (e.g., 100, 200)

2.) Check here for automatic Y scaling

3.) Press here to zoom

Additional Data

UV/Visible spectrum

Go To: Top, Reaction thermochemistry data, Mass spectrum (electron ionization), References, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Victor Talrose, Alexander N. Yermakov, Alexy A. Usov, Antonina A. Goncharova, Axlexander N. Leskin, Natalia A. Messineva, Natalia V. Trusova, Margarita V. Efimkina

Spectrum

Notice: This spectrum may be better viewed with a Javascript and HTML 5 enabled browser.

For Zoom

1.) Enter the desired X axis range (e.g., 100, 200)

2.) Check here for automatic Y scaling

3.) Press here to zoom

Additional Data

References

Go To: Top, Reaction thermochemistry data, Mass spectrum (electron ionization), UV/Visible spectrum, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Rozhnov, Levanova, et al., 1974
Rozhnov, A.M.; Levanova, S.V.; Dvornikova, G.A.; Sadovnikova, S.L., Equilibrium of isomerization of dichloroethylenes, J. Appl. Chem. USSR, 1974, 47, 667-669. [all data]

Craig, Piper, et al., 1971
Craig, N.C.; Piper, L.G.; Wheeler, V.L., Thermodynamics of cis-trans isomerizations. II. The 1-chloro-2-fluoroethylenes, 1,2-difluorocyclopropanes, and related molecules, J. Phys. Chem., 1971, 75, 1453-1460. [all data]

Wood and Stevenson, 1941
Wood, R.E.; Stevenson, D.P., The energy of isomerization of cis- and trans-dichloroethylene, J. Am. Chem. Soc., 1941, 63, 1650-1653. [all data]

Maroney, 1935
Maroney, W., The thermal equilibrium of the cis-trans isomers of dichloroethylene at high temperatures, J. Am. Chem. Soc., 1935, 57, 2397-2398. [all data]

Laursen and Pimentel, 1989
Laursen, S.L.; Pimentel, G.C., Matrix-induced intersystem crossing in the photochemistry of the 1,2-dichloroethenes, J. Phys. Chem., 1989, 93, 2328-2333. [all data]

Pitzer and Hollenberg, 1954
Pitzer, K.S.; Hollenberg, J.L., Cis- and trans-dichloroethylenes. The infrared spectra from 130-400 cm.^-1 and the thermodynamic properties, J. Am. Chem. Soc., 1954, 76, 1493-1496. [all data]

Kirkbride, 1956
Kirkbride, F.W., The heats of chlorination of some hydrocarbons and their chloro-derivatives, J. Appl. Chem., 1956, 6, 11-21. [all data]

Levanova, Treger, et al., 1975
Levanova, S.V.; Treger, Yu.A.; Velichko, S.M.; Rozhnov, A.M.; Khlestkov, A.I.; Pisarev, V.V., Liquid-phase hydrochlorination of symmetrical dichloroethylenes, J. Appl. Chem. USSR, 1975, 48, 1628-1631, In original 1574. [all data]

Perkampus and Braunschweig, 1966
Perkampus, H.-H.; Braunschweig, T.H., UV atlas of organic compounds, 1966, 1, A1/4. [all data]

Notes

Go To: Top, Reaction thermochemistry data, Mass spectrum (electron ionization), UV/Visible spectrum, References

• Symbols used in this document:
  

  ΔrH°	Enthalpy of reaction at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
• The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
• Customer support for NIST Standard Reference Data products.