this property is only applicable to cycloalkenes with 10 carbons or less. As the number of carbons increase, the possibility of a trans-isomer occurring also increase. The geometrical considerations as analyzed by computational analysis are as follows. The most stable trans-isomers of 10 ring or greater cycloalkenes exhibit 4 irregularities from standard geometric norms. The first irregularity is twisted planes of substituents along the C=C. Using C=C as the stable axis, 2 substituents of 1 carbon can be visualized on the same plane, equally applied to the other carbon. These planes are not planar and instead one carbon substituent plane twists along the axis away or toward the other carbon’s plane. This twisting leads to pyramidalization forming a pyramidal alkene which is the second irregularity. A greater angle of twisting, usually results in lower carbon number rings and decreases as the carbon number increases. Pyramidalization is important in highered number rings, because it increases p-orbital overlap for stability, and reduces torisional strain. Bond length between the C=C and corresponding vinyllic carbons also vary. In smaller cycloalkenes, it is expected for the bonds to be greater in length uniformly to account for increased strain, but for example, trans-cycloheptane has varying bond lengths. Also, the vinyllic carbons on trans cyclohexanes exhibit longer bond lengths than their respective cis isomer for trans-cycloheptane through trans-cyclononene (7 carbon and 9 carbon cycloalkenes). Synthesis Reactions Ring Closing Metathesis Ring-Closing Metathesis switches out functional groups from one or multiple terminal alkenes to form a cycloalkene. This process can be used to form cycloalkenes of either E or Z configurations, depending on the stereochemistry of the second ring strain. Birch Reduction Birch reduction is a possible method to reduce reduces aromatic compounds into cycloalkenes, specifically cyclohexadiene. Diels-Alder Reaction The Diels-Alder reaction, also known as cycloaddition, combines a conjugated diene and an alkene to form cycloalkene. This is a concerted process, with bonds forming and breaking simultaneously. Cyclization reactions Cyclization reactions, or intramolecular addition reactions, can be used to form cycloalkenes. These reactions primarily form cyclopentenones, a cycloalkene that contains two functional groups: the cyclopentene and a ketone group. However, other cycloalkenes, such as Cyclooctatetraene, can be formed as a result of this reaction. Electrocyclic Reactions Reactions of conjugated double-bond systems can be synthesized into cycloalkenes through electrocyclic reactions. Addition of heat or photolysis causes a reversible reaction that causes one pi bond to become a sigma bond, which