Eteenimolekyylejä

Eteenimolekyylejä are organic compounds that contain at least one carbon-carbon double bond. They are also known as alkenes. The simplest eteenimolekyyli is ethene (C2H4), which has the formula CH2=CH2. Ethene is a gas at room temperature and is widely used in the production of plastics, such as polyethylene.

The presence of a carbon-carbon double bond makes eteenimolekyylejä more reactive than alkanes, which contain only single bonds between carbon atoms. This reactivity allows eteenimolekyylejä to undergo a variety of chemical reactions, including addition reactions, polymerization, and oxidation. Addition reactions involve the breaking of the double bond and the addition of atoms or groups of atoms to the carbon atoms. Polymerization is a process in which many small eteenimolekyyli molecules join together to form a large polymer molecule.

Eteenimolekyylejä are found in many natural products, including plants and fruits. For example, ethene is a plant hormone that plays a role in fruit ripening and leaf senescence. Other eteenimolekyylejä, such as isoprene, are building blocks for natural rubber and terpenes.

The classification of eteenimolekyylejä can be based on the number of double bonds present. Monounsaturated compounds have one double bond, while polyunsaturated compounds have two or more double bonds. The position of the double bond within the carbon chain also affects the properties and reactivity of the molecule. Geometric isomerism, specifically cis-trans isomerism, can occur in eteenimolekyylejä if each carbon atom of the double bond is attached to two different groups. This leads to different spatial arrangements of atoms, resulting in distinct physical and chemical properties.