Results 21 to 30 of about 2,348,481 (310)
Frontiers in Chemistry, 2014 Hydrogen-bonds structure in poly(2-hydroxyethyl methacrylate) (PHEMA) were investigated by means of temperature-dependent infrared (IR) spectroscopy. Spectral variations involved with the OH•••OH and C=O•••HO types of hydrogen-bonds were found around the
Shigeaki eMorita
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Intramolecular hydrogen bonds in 1,4-dihydropyridine derivatives [PDF]
Royal Society Open Science, 2018 1,4-Dihydropyridine (1,4-DHP) derivatives have been synthesized and characterized by 1H, 13C, 15N nuclear magnetic resonance (NMR) spectroscopy, secondary proton/deuterium 13C isotope shifts, variable temperature 1H NMR experiments and quantum-chemical ...
M. Petrova +4 more
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A perspective approach on the amine reactivity and the hydrogen bonds effect on epoxy-amine systems
, 2020 The observation and influence of hydrogen bonds in epoxy-system curing and material properties is also discussed through a state of the art of literature.
Anne-Sophie Mora +4 more
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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
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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
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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
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A model for the hydrogen bond [PDF]
Proceedings 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
openaire +2 more sources
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
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Acta Crystallographica Section E, 2012 The title compound, 2C2H8N+·C30H12N2O122−·2H2O, comprises dimethylammonium cations, 3,3′-dicarboxy-5,5′-(5,7,12,14-tetraoxo-6,13-diazatetracyclo[6.6.2.04,16.011,15]hexadeca-1,3,8,10,15-pentaene-6,13-diyl ...
Lan-Ping Xu, Lan Qin, Lei Han
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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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