1,2-Diiodoethylene

January 2026 changed changed 477203654 1,2-Diiodoethene Cis-isomer.png Skeletal formula of cis-1,2-difluoroethene Skeletal formula of Cis-1,2-DIIODOETHYLENE.png Skeletal formula of Cis-1,2-DIIODOETHYLENE 1,2-Diiodoethene Trans-isomer.png Skeletal formula of trans-1,2-difluoroethene Skeletal formula of Trans-1,2-DIIODOETHYLENE.png Skeletal formula of Trans-1,2-DIIODOETHYLENE cis-1,2-Diiodoethene (Z) trans-1,2-Diiodoethene (E) cis-1,2-Diiodoethene (Z) trans-1,2-Diiodoethene (E) 1,2-Diiodoethene 1,2-Diiodoethylenesym-Diiodoethylene correct CAS 590-27-2 (Z) 20244-70-6 (E) 209-821-0 11537 5463341 (Z) 5378102 (E) 4576037 (Z) 4527007 (E) 1S/C2H2I2/c3-1-2-4/h1-2H/b2-1+ CVOGMKGEVNGRSK-OWOJBTEDSA-N C(=CI)I C(=C/I)\I 2 2 2 279.847 g/mol 73.4 196 to 197 1,2-Diiodoethylene, also known as 1,2-diiodoethene, is an organoiodide with the molecular formula C2H2I2.PubChem 1,2-Diiodoethene https://pubchem.ncbi.nlm.nih.gov/compound/11537 2026-01-14 pubchem.ncbi.nlm.nih.gov en 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.June 2017 See also 1,1-Diiodoethane 1,2-Diiodoethane References Category:Iodoalkenes Category:Halogenated solvents Category:Haloethenes