hydrogen bond

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a chemical bond consisting of a hydrogen atom between two electronegative atoms (e

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References in periodicals archive ?
It possible because Fl is one H-bond donor and three examined counter ions are one H-bond acceptors.
If there are two strands of DNA and they orient their polarities in opposite directions (antiparallel) to each other, their bases can interact and H-bond to each other--but only under one strict rule.
In the 10-ns simulations carried out for set B, H-bond breaking took place with forces ranging between 600-700 pN (Figure 5).
This is attributed to the polymer's conformation restricting the optimized H-bond geometry, especially in the chain's interior.
PABA2/[beta]-CD (A) is more favored than the other complexes: In this case, three H-bonds were established: the first H-bond with a length of 2.
These follow three rules: each base can only participate in at most one h-bond; h-bonds may not cross; and the bases that form an h-bond may not be too close to each other in the primary structure.
The receptors in these proteins are believed to bind sulfate by forming multiple strong hydrogen bonds between neutral H-bond donors and the charged sulfate anion.
Molecular modeling results suggest that hydrogen-bond energies and the maximum achievable interatomic distance between two terminal H-bond capable sites may influence both the potential to interact with the AR and the nature of the interaction (agonist vs.
Intramolecular H-Bond Formation Mediated De-Excitation of Curcuminoids: a Time-Resolved Fluorescence Study (Luca Nardo, Alessandra andreoni and Hanne Hjorth Tnnesen).
One H-bond interaction as one O atom of SO2 group acted as a H- bond acceptor with the amino acid; Thr 56 (2.
The modular and convergent method of the oxazole synthesis will facilitate both major and fine tuning of the catalysts function in single point, dual point and triple point activation, across nucleophilic catalysis, H-bond activation, and secondary amine catalysis for iminium and enamine based processes.
Furthermore, it has been reported that a significant number of reactive silanol groups (Si--OH) are situated at the edges of its tunnel structure, which may provide sites to form H-bond with some functional groups on polymer chains (3), (4).
Lowis adds, "Visualization enhancements and capabilities include interaction surfaces (Lee & Richards surface); H-bond and hydrophobic surface color trait; and enhanced isosurface generation and usability, especially for electron density maps.
In addition to the O/H-N1 H-bond the study provides evidence on the involvement of the H-N1 proton in a second H-bond (N2/H-N1) and that it leads to substantial diverse effects on the structures the NMR chemical shifts the atomic charges the orbitals interaction the tautomerism energies and the band gaps.