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The Topical Collection “Hydrogen Bonds” is a continuation of the previous Special Issue “Intramolecular Hydrogen Bonding 2021” [...]
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N′-(5-Bromo-2-hydroxybenzylidene)-3,4,5-trihydroxybenzohydrazide dihydrate
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
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Ethyl (E)-3-anilino-2-cyano-3-mercaptoacrylate
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
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Study on the turn structure of polypeptides containing glycine and L-proline
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
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(E)-4-Hydroxy-N′-(2-hydroxy-4-methoxybenzylidene)benzohydrazide N,N-dimethylformamide solvate
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
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A Spectroscopic Overview of Intramolecular Hydrogen Bonds of NH…O,S,N Type
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
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Physics and chemistry of hydrogen in the vacancies of semiconductors [PDF]
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
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1H and 19F NMR methods based on chemical shift measurements of different hydrogen bond donors used for quantifying hydrogen bond strength were analyzed and compared. The extracted values from these different methods are shown to be highly correlated with
Claudio Dalvit+2 more
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From ab initio quantum chemistry to molecular dynamics: The delicate case of hydrogen bonding in ammonia [PDF]
The ammonia dimer (NH3)2 has been investigated using high--level ab initio quantum chemistry methods and density functional theory (DFT). The structure and energetics of important isomers is obtained to unprecedented accuracy without resorting to ...
Boese, A. Daniel+3 more
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