a substance capable of reacting with an acid to form a salt and water, or (more broadly) of accepting or neutralizing hydrogen ions. a purine or pyrimidine group in a nucleotide or nucleic acid. the middle part of a bipolar transistor, separating the emitter from the collector. ...
atom, however, cysteine’s sulfur is very chemically reactive (see belowCysteine oxidation). Asparagine, first isolated fromasparagus, and glutamine both containamideRgroups. Thecarbonyl groupcan function as a hydrogen bond acceptor, and the amino group (NH2) can function as a hydrogen bond donor...
Sulfuric acid is a very strong acid; in aqueous solutions it ionizes completely to form hydronium ions (H3O+) and hydrogen sulfate ions (HSO4−). In dilute solutions the hydrogen sulfate ions also dissociate, forming more hydronium ions and sulfate ions (SO42−). In addition to being an...
Upon consideration of the above results as well as the theoretical studies, we determined a possible reaction pathway leading to the selective formation of hydrogen isotope compounds from the dehydrogenation of FA in D2O, as illustrated in Fig.4. In this process, regardless of the basicity of the...
The crystal structure of HDAC1 was obtained from the Protein Data Bank (PDB ID: 4BKX). Water, sulfate and acetate molecules were stripped from the system. Structural potassium ions were left due to their importance in the catalytic activity as suggested by their presence and conserved position ...
4), however, in the solid state the crystals were shown to form a hydrogen-bonded organic framework (HOF) architecture.8 The diboronic acid moieties form hexameric rings which are further connected by lateral hydrogen interactions forming nanotubular channels. Sign in to download full-size image ...
base produces water plus a salt. Carboxylic acids with six or fewer carbon atoms are freely or moderately soluble in water; those with more than six carbons are slightly soluble in water. Soluble carboxylic acid dissociate to an extent in water to yield hydrogen ions. The pH of solutions of...
DefinitionChEBI: A mononuclear parent hydride consisting of covalently bonded hydrogen and chlorine atoms. DefinitionA colorless fuming liquid made by adding hydrogen chloride to water: HCl(g) + H2O1. → H3O+(aq) + Cl-(aq) Dissociation into ions is extensive and hydrochloric acid shows the typi...
Here we investigated the effect of coupling between hydrogen bonding and excluded volume interactions on the titration curves and pKa (-log Ka, the equilibrium constant of the acid-base titration) of polyacrylic acid (PAA) in solutions containing PEO-based micelles of different size and volume frac...
atom, however, cysteine’s sulfur is very chemically reactive (see belowCysteine oxidation). Asparagine, first isolated fromasparagus, and glutamine both containamideRgroups. Thecarbonyl groupcan function as a hydrogen bond acceptor, and the amino group (NH2) can function as a hydrogen bond donor...