ABSTRACT
Alkenes are hydrocarbons with one and only one double CC bond having a condensed formula similar to that from cycloalkanes. The IUPAC nomenclature of alkenes uses -ene suffix and the numbering scheme of the main chain are given so that the first vinyl carbon atom in the chain has the lowest number. The requisite for stereoisomerism in alkenes implies that each vinylic carbon has one most voluminous non-vinylic substituent. The stability of stereoisomers of alkenes is very important for the stereoselectivity of elimination reactions. The microscopic analysis of conformers in gas phase can be done by single molecules or monoalkenes. When comparing number of hydrogen-hydrogen bonds to corresponding boiling points of 1-alkenes, the linear relation is outstanding, showing that the bimolecular model can be applied to predict physical properties of 1-alkenes.
