Results 11 to 20 of about 3,073,614 (389)

Hydrogen Bonds

open access: yesMolecules, 2023
The Topical Collection “Hydrogen Bonds” is a continuation of the previous Special Issue “Intramolecular Hydrogen Bonding 2021” [...]
openaire   +3 more sources

Hydrogen bond design principles

open access: yesWiley Interdisciplinary Reviews. Computational Molecular Science, 2020
Hydrogen bonding principles are at the core of supramolecular design. This overview features a discussion relating molecular structure to hydrogen bond strengths, highlighting the following electronic effects on hydrogen bonding: electronegativity ...
L. Karas   +3 more
semanticscholar   +1 more source

N′-(5-Bromo-2-hydroxybenzylidene)-3,4,5-trihydroxybenzohydrazide dihydrate

open access: yesActa Crystallographica Section E, 2008
The title compound, C14H11BrN2O5·2H2O, crystallizes as hydrogen-bonded sheets. The 2-hydroxy group on the benzylidene group forms an intramolecular hydrogen bond to the N atom of the C=N double bond.
Hapipah M. Ali   +4 more
doaj   +1 more source

Study on the turn structure of polypeptides containing glycine and L-proline

open access: yesJournal of Hebei University of Science and Technology, 2016
The formation of turn structure in peptide chains has direct relations with intramolecular hydrogen bonds, therefore the existence of this bond can be tested to research the turn structure.
Yong ZHANG   +3 more
doaj   +1 more source

Ethyl (E)-3-anilino-2-cyano-3-mercaptoacrylate

open access: yesActa Crystallographica Section E, 2008
In the title compound, C12H12N2O2S, there are S—H...N and N—H...O hydrogen-bond interactions. The N—H...O hydrogen bond is bifurcated, with the hydrogen being simultaneously donated to two equivalent O atoms, forming one intra- and one ...
Yong-Qi Qin   +3 more
doaj   +1 more source

A model for the hydrogen bond [PDF]

open access: yesProceedings of the National Academy of Sciences, 1975
A model of the linear hydrogen bond has been devised which is characterized by three physical parameters of the isolated electron donor and proton donor molecules: μ A-H , the bond dipole moment; Δ I , the difference in ionization potential between that of the electron donor and the ...
openaire   +2 more sources

Physics and chemistry of hydrogen in the vacancies of semiconductors [PDF]

open access: yes, 2003
Hydrogen is well known to cause electrical passivation of lattice vacancies in semiconductors. This effect follows from the chemical passivation of the dangling bonds.
A. Fara   +34 more
core   +1 more source

(E)-4-Hydroxy-N′-(2-hydroxy-4-methoxybenzylidene)benzohydrazide N,N-dimethylformamide solvate

open access: yesActa Crystallographica Section E, 2009
The Schiff base molecule of the title compound, C15H14N2O4·C3H7NO, adopts a trans configuration with respect to the C=N double bond; the Schiff base itself is nearly planar (r.m.s. deviation 0.20 Å).
Nooraziah Mohd Lair   +2 more
doaj   +1 more source

A Spectroscopic Overview of Intramolecular Hydrogen Bonds of NH…O,S,N Type

open access: yesMolecules, 2021
Intramolecular NH…O,S,N interactions in non-tautomeric systems are reviewed in a broad range of compounds covering a variety of NH donors and hydrogen bond acceptors. 1H chemical shifts of NH donors are good tools to study intramolecular hydrogen bonding.
Poul Erik Hansen
doaj   +1 more source

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