hydroxyl group


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Related to hydroxyl group: Sulfhydryl group

hydroxyl group

(hīdrŏk`sĭl), in chemistry, 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.
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 that consists of an oxygen atom joined by a single bond to a hydrogen atom. An alcoholalcohol,
any of a class of organic compounds with the general formula R-OH, where R represents an alkyl group made up of carbon and hydrogen in various proportions and -OH represents one or more hydroxyl groups.
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 is formed when a hydroxyl group is joined by a single bond to an alkyl groupalkyl group
, in chemistry, group of carbon and hydrogen atoms derived from an alkane molecule by removing one hydrogen atom (see radical). The name of the alkyl group is derived from the name of its alkane by replacing the -ane suffix with -yl, e.g.
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 or aryl grouparyl group
, in chemistry, group of atoms derived from benzene or from a benzene derivative by removing one hydrogen that is bonded to the benzene ring (see radical). The simplest aryl group is phenyl, C6H5 ; it is derived from benzene.
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. A metal hydroxide is formed when a hydroxyl group is joined to a metal (e.g., sodium hydroxide).
References in periodicals archive ?
When the hydroxyl group forms the hydrogen bonding, the -OH absorption peak would move to a lower frequency (3300 [cm.
1] is attributed to the surface hydroxyl groups, and -- CH stretching and -- C[H.
This work together with the literature show that the phenolic hydroxyl group of AO-80 can indeed form hydrogen bonding with polymers that bear electron-donating groups.
19 Sample Physically adsorbed water Hydroxyl group density (/[mu]mol/[m.
65 ppm corresponded to the methylene protons next to the terminal hydroxyl groups, which clarified multihydroxyl alcohols initiated ROP of [epsilon]-CL successfully.
Similarly, Arg36 residue also showed prominent interaction with oxygen of hydroxyl group as shown in Figure S5.
The use of near infrared spectroscopy and derivative techniques has helped to understand the nature of surface hydroxyl groups and their adsorption characteristics towards water molecules.
More recently, however, some strains of bacteria have developed resistance to these agents by producing enzymes that can alter the function of amino and hydroxyl groups within the molecule so that it can no longer penetrate bacterial cells.
3,20) For the PUA cured films without PIH, the increased decomposition temperature is possible because the added hydroxyl group of HEA produces enhanced hydrogen bonding interaction in the copolymers, which yields high crosslinking density.
We found that the hydroxyl group at position C-3 of the ursane-type triterpenoids plays an indispensable role in inhibiting osteoclast differentiation (Fig.
The phenolic hydroxyl group changes by ultraviolet spectroscopy are listed in Table 3.
As the 3-OH of rutin and isoquercitrin was glycosylated comparing to hesperetin rutin and isoquercitrin have two ortho hydroxyl groups in the B ring while there is only one hydroxyl group at 3' position of hesperetin which implicated that the two adjacent hydroxyls improved the antiradical capacities of flavonoids.