Results 21 to 30 of about 584,997 (254)

Improving the mesomorphic behaviour of supramolecular liquid crystals by resonance-assisted hydrogen bonding [PDF]

open access: yes, 2019
A systematic structure-property relationship study on hydrogen-bonded liquid crystals was performed, revealing the impact of resonance-assisted hydrogen bonds (RAHBs) on the self-assembling behavior of the supramolecular architecture.
Daniliuc C.   +6 more
core   +1 more source

Two isostructural carbamates: the o-tolyl N-(pyridin-3-yl)carbamate and 2-bromophenyl N-(pyridin-3-yl)carbamate monohydrates

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2015
The title carbamate monohydrates, C13H12N2O2·H2O and C12H9BrN2O2·H2O, form isomorphous crystals that are isostructural in their primary hydrogen-bonding modes.
Pavle Mocilac, John F. Gallagher
doaj   +1 more source

Structural and dipolar fluctuations in liquid water: a Car–Parrinello molecular dynamics study [PDF]

open access: yes, 2016
A Car–Parrinello molecular dynamics simulation was performed to investigate the local tetrahedral order, molecular dipole fluctuations and their interrelation with hydrogen bonding in liquid water.
Guàrdia Manuel, Elvira   +2 more
core   +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

Structure of Simple Dipolar Water-Like Fluids: Primitive Model and Hard Tetrahedra

open access: yesFrontiers in Chemistry, 2021
Dipolar versions of two qualitatively different types of simple short range model fluids which exhibit the phenomenon of hydrogen bonding and which could thus serve as a reference in equations of state for associating fluids have been considered: the ...
I. Nezbeda, I. Nezbeda
doaj   +1 more source

Crystal structures of N ′-Aminopyridine-2-carboximidamide and N ′-{[1-(pyridin-2-yl)ethylidene]amino}pyridine-2-carboximidamide [PDF]

open access: yes, 2017
© Eya'ane Meva et al. 2017. The crystal structures of N,-Aminopyridine-2-carboximidamide (C 6 H 8 N 4 ), 1, and N,-{[1-(pyridin-2-yl)ethylidene]amino}pyridine-2-carboximidamide (C 13 H 13 N 5 ), 2, are described.
Evans, David John   +3 more
core   +2 more sources

Profiling Hydrogen-Bond Conductance via Fixed-Gap Tunnelling Sensors in Physiological Solution

open access: yesChemosensors
Hydrogen bonding, a prevalent molecular interaction in nature, is crucial in biological and chemical processes. The emergence of single-molecule techniques has enhanced our microscopic understanding of hydrogen bonding.
Biao-Feng Zeng   +8 more
doaj   +1 more source

Functional materials based on molecules with hydrogen-bonding ability: applications to drug co-crystals and polymer complexes [PDF]

open access: yesRoyal Society Open Science, 2018
The design, synthesis and property characterization of new functional materials has garnered interest in a variety of fields. Materials that are capable of recognizing and binding with small molecules have applications in sensing, sequestration, delivery
Kristin M. Hutchins
doaj   +1 more source

Tetraammonium Tetrametaphosphimate Tetrahydrate [PDF]

open access: yes, 1998
The tetrametaphosphimate ring in the title compound, (NH4)4+(PO2NH)4-.4H2O exhibits a chair conformation. The tetrametaphosphimate rings are linked by N-HO bonds forming columns along [100].
Schnick, Wolfgang, Stock, Norbert
core   +1 more source

Hydrogen bonding in 1-carboxypropanaminium nitrate

open access: yesActa Crystallographica Section E, 2012
There are two crystallographically independent cations and two anions in the asymmetric unit of the title compound, C4H5NO2+·NO3−. In the crystal, the 1-carboxypropanaminium cations and nitrate anions are linked to each other through ...
Rim Benali-Cherif   +3 more
doaj   +1 more source

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