Cistransasettelu

Cistransasettelu, also known as cis-trans isomerism, is a type of stereoisomerism in organic chemistry where the spatial arrangement of atoms or groups around a double bond or a ring structure is different. This phenomenon is crucial in understanding the properties and reactivity of organic compounds. In cis isomers, similar groups are on the same side of the double bond or ring, while in trans isomers, they are on opposite sides. This difference in spatial arrangement can significantly affect the physical and chemical properties of the compounds, such as boiling points, melting points, and reactivity. For example, cis-2-butene and trans-2-butene are cis-trans isomers of butene. The cis isomer has a lower boiling point and is more reactive than the trans isomer due to the steric hindrance caused by the similar groups being on the same side in the cis configuration. Cistransasettelu is a fundamental concept in organic chemistry and plays a vital role in the study and application of organic compounds.