alkyl group


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.
Related to alkyl group: alkylation

alkyl group

(ăl`kĭl), in chemistry, group of carbon and hydrogen atoms derived from an alkanealkane
, any of a group of aliphatic hydrocarbons whose molecules contain only single bonds (see chemical bond). Alkanes have the general chemical formula CnH2n+2.
..... Click the link for more information.
 molecule by removing one hydrogen atom (see radicalradical,
in chemistry, group of atoms that are joined together in some particular spatial structure and that take part in most chemical reactions as a single unit. Important inorganic radicals include ammonium, NH4; carbonate, CO3 ; chlorate, ClO3
..... Click the link for more information.
). The name of the alkyl group is derived from the name of its alkane by replacing the -ane suffix with -yl, e.g., methyl, CH3, from methane, CH4, and ethyl, C2H5, from ethane, C2H6. In some cases different alkyl groups can be formed from the same alkane by removing different hydrogen atoms; the alkyl groups are then distinguished by adding a prefix, e.g., 1-propyl or n-propyl, CH2CH2CH3, and 2-propyl or isopropyl, CH(CH3)2, both formed from propane, CH3CH2CH3. When a functional groupfunctional group,
in organic chemistry, group of atoms within a molecule that is responsible for certain properties of the molecule and reactions in which it takes part. Organic compounds are frequently classified according to the functional group or groups they contain.
..... Click the link for more information.
 is joined with an alkyl group, replacing the hydrogen that was removed, a compound is formed whose characteristics depend largely on the functional group.
References in periodicals archive ?
Only few reports are published regarding to the inclusion of long alkyl / non alkyl group substituted viologens into CD cavity [7].
Siliconates can be thought of as "silane salts," where a metal replaces one or more of the alkyl groups attached to oxygen.
The grafted alkyl group density was calculated based on the carboxyl group density (Table 1) and the grafting reaction efficiency (Table 2).
This is attributed to the order of electron deficiency in polymer chain or the order of inductive effect of the pendant alkyl group.
This trend shows dependence of antibacterial activity on number and nature of alkyl group attached to tin [35].
It seems that the type of alkyl group in the alkyltriethoxysilane used in this system has no effect on the particle size.
0% of a C8 to C10 alkylpolyglucoside wherein the alkyl group is substantially C8 alkyl, substantially C10 alkyl, or a mixture of substantially C8 and C10 alkyl; 0.
The salt of organic sulfonic acid comprises one or more selected from the group consisting of alkali salts of alkyl sulfonic acid with alkyl group with 6-22 carbon atoms, alkali salts of alkyl aryl sulfonic acid with alkyl group with 2-22 carbon atoms and alkali salts of sulfo fatty acid ester with alkyl group with 2-22 carbon atoms.
3] independently denote an alkyl group having 1 to 4 carbon atoms, m denotes an integer of 1 to 5, and n denotes an integer of 0 to 5.
Cabot Corporation has received a patent for a pigment composition comprised of at least one pigment and at least one dispersant composition comprised of at least one anionic surfactant and at least one polymer comprised of at least one salt of a carboxylic acid group, wherein the pigment is a modified carbon product comprised of a carbon product having attached at least one organic group, and wherein the organic group is comprised of at least one aromatic group or at least one C1-C12 alkyl group and further it is comprised of at least one anionic group or salts thereof.