hydrogen bond


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Related to hydrogen bond: ionic bond, Van der Waals bond

hydrogen bond

[′hī·drə·jən ′bänd]
(physical chemistry)
A type of bond formed when a hydrogen atom bonded to atom A in one molecule makes an additional bond to atom B either in the same or another molecule; the strongest hydrogen bonds are formed when A and B are highly electronegative atoms, such as fluorine, oxygen, or nitrogen.
References in periodicals archive ?
By taking a number N of hydrogen bonds contained in a volume of water representative of the memory device of the living beings, we was able to associate two characteristic times to them.
Criterion for hydrogen bond creation needs some explanation.
In organic molecular crystals, hydrogen bonds often constitute the strongest intermolecular synthon [21], and hence often dictate the preferred packing arrangement of the molecules.
Once again, electronegativity can be used as a central concept to describe hydrogen bonds.
The thermodynamics of hydrogen bond rearrangements in the liquid phase have recently been examined [14].
This result indicates that the thermoreversibility only takes place due to the breakage of hydrogen bond at high temperature, while during cooling hydrogen bonding can reform slowly.
Contrary to expectations based on the straightforward interpretation of the known in-line mechanism of action of RNase, nitrogen NE2 of His12 was found to form a hydrogen bond to the equatorial oxygen O8, while nitrogen NZ of Lys4l makes a clear hydrogen bond to the apical oxygen O2'.
Vibrational Dynamics of the Hydrogen Bonds in Nucleic Acid Base Pairs (Yun-An Yan and Oliver Khn).
Taking into account the microstructures of these copolymers, the intermolecular hydrogen bond between the carbonyl group of MMA and the amide group of MAAM has a larger probability of occurring than the self-association through hydrogen bonding of pure PMAAM (15).
MOLECULAR DANCE Some of water's odd properties have traditionally been explained as consequences of the hydrogen bonds that form between water molecules (and sometimes other molecules).
They found that an unusual arrangement of hydrogen bonds - the "glue" that stabilizes the beta-sheet crystals - play an important role in defining the strength of silk.
lb) and large amount of experimental data available in the literature, ABPBI was selected for a detailed study of the effect of water concentration, PA-doping level, and temperature on the hydrogen bond network and vehicular diffusion properties of PA-doped polybenzimidazoles.