cis-1,2-Dichloroethylene reacts with sodium dimethylarsenide to give a colourless oil containing the trans-and cis-isomers of 1,2-bis(dimethylarsino) ethylene (edas) in a ratio of about 10 to 1, as indicated by proton nmr measurements. The infrared spectrum and an approximate determination ...
Due to the polar nature of the bonds in 1,2-dichloroethylene, the boiling point of the cis isomer is 60.3oC whereas that of the trans isomer is 47.5oC (the C-Cl dipole moments in the trans isomer cancel each other out). The cis and trans isomers of butenedioic acid display very differ...