Hydroxyl in a sentence

Hydroxyl radical main Hydroxyl radicals are highly reactive and undergo chemical reactions that make them short-lived.

Polyols made with only propylene oxide are terminated with secondary hydroxyl groups and are less reactive than polyols capped with ethylene oxide, which contain primary hydroxyl groups.

They may have either a negative charge provided by the attached hydroxyl ion (OH − ), which can attract a cation, or lose the hydrogen of the hydroxyl to solution and display a positive charge which can attract anions.

This compact and portable cleaner utilizes advanced hydroxyl purification technology to achieve a remarkable 99.99 percent sterilization rate, effectively disinfecting and cleaning your vegetables, fruits and meats with just the press of a button.

X-rays capture the ultrafast proton transfer reaction in ionized liquid water, forming the hydroxyl radical (OH) and the hydronium (H3O+) ion.

A hydrogen atom bonded to an oxygen atom is a hydroxyl group with the oxygen atom's second bond available for bonding.) The carboxylate anion R–COO − is usually named with the suffix -ate, so acetic acid, for example, becomes acetate ion.

Also, through catalysis, Hmain Omain can be converted into hydroxyl radicals (·OH), which are highly reactive.

Although catalysis of the peptide bond involves the C2 hydroxyl of RNA's P-site adenosine in a proton shuttle mechanism, other steps in protein synthesis (such as translocation) are caused by changes in protein conformations.

A phosphate group can be attached to the sidechain hydroxyl group of serine, threonine and tyrosine residues, adding a negative charge at that site and producing an unnatural amino acid.

Beta-hydroxybutyrate is a reduced form of acetoacetate, in which the ketone group is converted into an alcohol (or hydroxyl ) group (see illustration on the right).

By 1 H NMR spectrometry, the hydroxyl hydrogen appears in the 10–13 ppm region, although it is often either broadened or not observed owing to exchange with traces of water.

Comparison of DNA and RNA structure main The major difference between RNA and DNA is the presence of a hydroxyl group at the 2'-position of the ribose sugar in RNA (illustration, right).

Dehydration synthesis often involves joining monomers with an -OH (hydroxyl) group and a freely ionized -H on either end (such as a hydrogen from the -NH 2 in nylon or proteins ).

Electron-withdrawing groups attached to the carbon containing the hydroxyl group will serve to stabilize the alkoxide when formed, thus resulting in greater acidity.

Elimination of specific hydroxyl groups on the glucopyranose moiety does not completely eliminate catalysis.

Evans also found that the compound reacted like an alcohol and concluded that one of the oxygen atoms was part of an OH (hydroxyl) group.

For affinity chromatography, beaded agarose is the most commonly used matrix resin for the attachment of the ligands that bind protein. citation The ligands are linked covalently through a spacer to activated hydroxyl groups of agarose bead polymer.

For example, a protonated hydroxyl group is an oxonium ion, but not a hydronium.

For example, three isomers exist for cresol because the methyl group and the hydroxyl group can be placed next to each other (ortho), one position removed from each other (meta), or two positions removed from each other (para).

Formation of Fe 2+ ions and hydroxyl ions are indicated by blue and pink patches respectively.