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1,2-Diiodoethylene

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1,2-Diiodoethylene
Skeletal formula of cis-1,2-difluoroethene
Skeletal formula of cis-1,2-difluoroethene
cis-1,2-Diiodoethene (Z)
Skeletal formula of trans-1,2-difluoroethene
Skeletal formula of trans-1,2-difluoroethene
trans-1,2-Diiodoethene (E)
Skeletal formula of Cis-1,2-DIIODOETHYLENE
Skeletal formula of Cis-1,2-DIIODOETHYLENE
cis-1,2-Diiodoethene (Z)
Skeletal formula of Trans-1,2-DIIODOETHYLENE
Skeletal formula of Trans-1,2-DIIODOETHYLENE
trans-1,2-Diiodoethene (E)
Names
Preferred IUPAC name 1,2-Diiodoethene
Other names 1,2-Diiodoethylene
sym-Diiodoethylene
Identifiers
CAS Number
3D model (JSmol)
ChemSpider
EC Number
  • 209-821-0
PubChem CID
CompTox Dashboard (EPA)
InChI
  • InChI=1S/C2H2I2/c3-1-2-4/h1-2H/b2-1+Key: CVOGMKGEVNGRSK-OWOJBTEDSA-N
SMILES
  • C(=CI)I
  • C(=C/I)\I
Properties
Chemical formula C2H2I2
Molar mass 279.847 g/mol
Melting point 73.4 °C (164.1 °F; 346.5 K)
Boiling point 196 to 197 °C (385 to 387 °F; 469 to 470 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). ☒N verify (what is  ?) Infobox references
Chemical compound

1,2-Diiodoethylene, also known as 1,2-diiodoethene, is an organoiodide with the molecular formula C2H2I2. It can exist as either of two geometric isomers, cis-1,2-diiodoethylene or trans-1,2-diiodoethylene.

E-Z relative stability

Like most cis-trans compounds, the Z isomer (cis) is less stable than the E isomer (trans) by 2 kcal/mol.

See also

References

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