transisómer

Transisómer is a term used in chemistry to describe a type of isomerism where the isomers have functional groups on opposite sides of a double bond. This type of isomerism is commonly observed in alkenes, where the double bond restricts rotation around the bond, leading to the existence of two distinct geometric isomers. These isomers are called cis-isomers and trans-isomers. In cis-isomers, the similar groups are on the same side of the double bond, while in trans-isomers, they are on opposite sides. The term "trans" comes from the Latin word "transversus," meaning "across," reflecting the arrangement of the groups. Transisómerism is an important concept in organic chemistry, as it affects the physical and chemical properties of compounds, such as boiling points, melting points, and reactivity. The study of transisómerism is crucial in understanding the behavior of organic molecules and in the design of pharmaceuticals and other chemical compounds.