alkene


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alkene

 [al´kēn]
an aliphatic hydrocarbon containing a double bond.

al·kene

(al'kēn),
An acyclic hydrocarbon containing one or more carbon-carbon double bonds; for example, ethene, propene.
Synonym(s): olefin

alkene

[al′kēn]
an unsaturated aliphatic hydrocarbon containing one double bond in the carbon chain, such as ethylene. Also called olefin.

al·kene

(al'kēn)
An acyclic hydrocarbon containing one or more double bonds; e.g., ethene, propene.
Synonym(s): olefin.

alkene (alˑ·kēnˈ),

n unsaturated hydrocarbon compound that has double covalent bonds with CnH2n as the general chemical formula. Terpenes, found in essential oils, are members of this functional group.

alkene

an aliphatic hydrocarbon containing a double bond.
References in periodicals archive ?
Exceptions are the alkanes, alkenes, and aromatics which show a more linear relationship with concentration and, consequently, maximum solubility potential occurs for the neat candidate or baseline fuel.
When the temperature and relative humidity were held steady, the percentage of arenes increased as the ratio of air exchange rate-to-loading factor increased, but the percentage of alkenes and of aldehydes and ketones decreased at the same rate as this ratio increased (Fig.
Keywords: Heterogeneous, Selective partial hydrogenation, Mesoporous silica, Nano composite, Alkynes, alkenes.
Having learned about these major pitfalls, the remaining major task was to find some satisfactory chiral zirconocene catalysts with sufficiently, but not excessively, bulky ligands to suppress unwanted side reactions, while promoting the desired alkene carbometalation.
Branched alkenes plot between their straight-chain analogues and the pyrogenic SOM markers, supporting the hypothesis that these branched alkenes are associated with charred aliphatic precursors (Eckmeier and Wiesenberg 2009; Kaal and Rumpel 2009).
Whereas this is true for the majority of type-2 alkene electrophiles, physiochemical characteristics such as steric hindrance imposed by tertiary structure, solubility, and acid-base equilibrium can influence predictions of toxic potency based on HSAB parameters (reviewed by LoPachin et al.
Already, LoPachin's group has developed just such a compound that, in Petri dishes at least, sops up type-2 alkenes and protects nerves from harm.
Our studies on the reactions of alkene derivatives with bromine and bromoform could form the basis for studies of similar processes in biological systems.
The solvent activities correlated with the alkene to alkane ratios, with more alkenes observed from the more active catalysts.
The resin was heated to 175[degrees]C, and when the entire quantity of resin was molten, an oxazoline functional alkene (73-170 g), depending on the degree of modification required, was added from the addition funnel for over 60 min.
Comprising 50-80% is a composition selected from the group consisting of a random copolymer of propylene with 7-40% by weight of a CH2_CHR alkene, where R is an alkyl group containing from 2 to 6 carbon atoms, and from 0.
ENYNE a molecule with an alkene and an alkyne present