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 ?
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.
The results show that heat of reaction is not dependent on the chain length number of the molecule attached to the hydroxyl group.
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.
3] contain hydroxyl groups, the influence of -OH group on the ring opening polymerization of B -z[(OH).
Reactions between ABOPEtA with TDI forming urethane modified polyetheramide [UABOPEtA] is suggested by reduction both in intensity and broadness of the band of residual hydroxyl group at 3322.
From table-1, it is noticed that the free amine stretching band increases as the concentration of hydroxyl group increases and the intensity of amine band decreases while half width slightly increases.
The location of hydroxyl groups in the small or large latex particles had an effect upon the thermomechanical properties and hence on the ultimate performance of the crosslinked latexes.
It is the only commercially important oil having a composition of approximately 90 per cent of a hydroxyl, unsaturated C18 fatty acid-ricinoleic acid, a double bond in the 9-10 position and a hydroxyl group on the 12th carbon.
The solid plasticizer comprises at least two different benzotriazole derivatives selected from compounds represented by following formula: R1 is one of a hydrogen atom, a halogen atom and an alkyl group; m is an integer of one to four; and X is one of a hydrogen atom, an alkyl group, an aryl group, an aralkyl group and a group represented by following formula: R2 is one of a hydrogen atom, a halogen atom, an alkyl group and hydroxyl group and n is an integer of one to five.
In this work, we try to increase the antimicrobial activity of chitosan via increase the amino group on the polymer back bone by attaching amino group directly on the hydroxyl group of polysaccharide.