Halogenated alkenes are organic compounds that contain both a carbon-carbon double bond and one or more halogen atoms, such as fluorine, chlorine, bromine, or iodine. These compounds are derived from alkenes, which are hydrocarbons characterized by at least one double bond between carbon atoms. The presence of halogens can significantly alter the chemical properties and reactivity of the alkene. These compounds are important in various applications, including synthesis of pharmaceuticals, agricultural chemicals, and industrial solvents. Halogenated alkenes can participate in reactions such as addition and substitution, making them valuable intermediates in organic chemistry. Their unique properties also make them useful in materials science and environmental studies.