hydrogen bond

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hydrogen bond

n.
A chemical bond in which a hydrogen atom of one molecule is attracted to an electronegative atom, especially a nitrogen, oxygen, or fluorine atom, usually of another molecule.

hydrogen bond

n
(Chemistry) a weak chemical bond between an electronegative atom, such as fluorine, oxygen, or nitrogen, and a hydrogen atom bound to another electronegative atom. Hydrogen bonds are responsible for the properties of water and many biological molecules

hy′drogen bond`


n.
an electrostatic bond between a hydrogen atom in a covalent bond and an electronegative atom, as oxygen.

hydrogen bond

A chemical bond in which a hydrogen atom that is already bonded to an atom in a molecule forms a second bond with another atom, either in the same molecule or in a different one. The second atom is usually of a type that strongly attracts electrons, such as nitrogen or oxygen.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.hydrogen bond - a chemical bond consisting of a hydrogen atom between two electronegative atoms (e.g., oxygen or nitrogen) with one side be a covalent bond and the other being an ionic bond
bond, chemical bond - an electrical force linking atoms
Translations
Wasserstoffbrückenbindung
References in periodicals archive ?
Hydrogen bond acceptors (HBA), aromatic rings (AR ring) and positive ionizable (PI) groups were identified computationally as pharmacophore features by LigandScout.
The hydrogen bond acceptor ability of DMSO due to the S = O group may determine the efficiency of concentrating of the probe on the surface of the CDA matrix.
In this DES mixture (reline), cholinium chloride is used as the hydrogen bond acceptor (HBA) because of its low cost, low toxicity, biodegradability, and biocompatibility.
Indeed, two hydrogen bond acceptors (A1 and A2) were located at the A site and interacted strongly with Lys120, Phe182, Tyr46, Ile219, and Arg221.
Out of the 10 generated pharmacophores, seven have displayed one ring aromatic, two hydrogen bond acceptors, and one hydrophobic feature, while the remaining three have displayed one hydrophobic and three hydrogen bond acceptors, Supplementary 4.
Probes such as uncharged NH nitrogen, alcohol oxygen, oxygen atom, aromatic CH carbon, and C-Cl chlorine were used as proxies to provide interaction maps which indicate positions of hydrogen bond acceptors (shown in red), donors (blue), and any possibility of halogen bonding (shown in green) [19].
The study shows that the hydrogen bond acceptor peaks on the methanol (O-H) are higher than those on the methyl groups.
Each pharmacophore displayed the presence of pharmacophoric sites, that is, aromatic ring (R), hydrogen bond acceptor (A), hydrogen bond donor (D), and hydrophobic group (H), as per their activity/affinity towards that particular macromolecule.
Pharmacophoric sites (hydrogen bond donor, hydrogen bond acceptor, hydrophobic sites, aromatic rings, and positive and negative groups) were analyzed.