Results 21 to 30 of about 825,816 (298)
Diethyl [(4-bromophenyl)(5-chloro-2-hydroxyanilino)methyl]phosphonate
Acta Crystallographica Section E, 2009 In the title compound, C17H20BrClNO4P, intermolecular C—H...O and N—H...O hydrogen bonds form centrosymmetric R22(10) dimers linked through O—H...O intermolecular hydrogen bonds, which form centrosymmetric R22(16) dimers ...
V. H. H. Surendra Babu +4 more
doaj +1 more source
AIP Advances, 2023 Molecular crowding agents can significantly suppress water activity by affecting hydrogen bonds. Here, we performed molecular dynamics simulation to study the effect of temperature and concentration of sulfolane, a crowding agent, on aqueous electrolytes.
Wenyu Zhang +5 more
doaj +1 more source
“Hydridic Hydrogen-Bond Donors” Are Not Hydrogen-Bond Donors [PDF]
Journal of the American Chemical SocietyHerein, we dismiss a recent proposal by Civiš, Hobza, and co-workers to modify the IUPAC definition of hydrogen bonds in order to expand the scope from protonic Y-Hδ+ to hydridic Y-Hδ- hydrogen-bond donor fragments [J. Am. Chem. Soc. 2023, 145, 8550].
Lucas de Azevedo Santos +3 more
openaire +4 more sources
Infrared Absorption Associated with Strong Hydrogen Bonds [PDF]
, 1958 Several investigators have proposed that there exists a more or less unique relation between the O-O distance in O-H-O hydrogen bonds and the shift of O-H vibrational frequency. [1-5] However, the meager intensities of some bands which have been ascribed
Albert, Norman, Badger, Richard M.
core +1 more source
H2XP:OH2 Complexes: Hydrogen vs. Pnicogen Bonds
Crystals, 2016 A search of the Cambridge Structural Database (CSD) was carried out for phosphine-water and arsine-water complexes in which water is either the proton donor in hydrogen-bonded complexes, or the electron-pair donor in pnicogen-bonded complexes.
Ibon Alkorta +2 more
doaj +1 more source
4-Amino-1H-1,2,4-triazol-1-ium nitrate
Acta Crystallographica Section E, 2011 The non-centrosymmetric crystal structure of the novel semi-organic title compound, C2H5N4+·NO3−, is based on alternating layers of 4-amino-1H-1,2,4-triazolinium cations (formed by parallel chains of cations mediated by weak C& ...
Ivan Němec +2 more
doaj +1 more source
The polar clasps of a bank vole PrP(168--176) prion protofibril revisiting [PDF]
, 2019 On 2018-01-17 two electron crystallography structures (with PDB entries 6AXZ, 6BTK) on a prion protofibril of bank vole PrP(168-176) (a segment in the PrP $\beta$2-$\alpha$2 loop) were released into the PDB Bank.
Zhang, Jiapu
core +3 more sources
2-Amino-4-methylpyrimidinium dihydrogen phosphate
Acta Crystallographica Section E, 2013 A charge-assisted hydrogen-bonding network involving N—H...O and O—H...O hydrogen bonds stabilizes the crystal of the title salt, C5H8N3+·H2PO4−.
Sajesh P. Thomas, Jyothi Sunkari
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Improving the mesomorphic behaviour of supramolecular liquid crystals by resonance-assisted hydrogen bonding [PDF]
, 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
Do Hydrogen Bonds Influence Excitonic Splittings?
CHIMIA, 2016 The excitonic splitting and vibronic quenching of the inversion-symmetric homodimers of benzonitrile, (BN)2, and meta-cyanophenol, (mCP)2, are investigated by two-color resonant two-photon ionization spectroscopy.
Franziska A. Balmer +2 more
doaj +1 more source