Results 11 to 20 of about 2,002,951 (308)
Not Only Hydrogen Bonds: Other Noncovalent Interactions
Crystals, 2020 In this review, we provide a consistent description of noncovalent interactions, covering most groups of the Periodic Table. Different types of bonds are discussed using their trivial names. Moreover, the new name “Spodium bonds” is proposed for group 12
I. Alkorta, J. Elguero, A. Frontera
semanticscholar +1 more source
Hydrogen and Lithium Bonds—Lewis Acid Units Possessing Multi-Center Covalent Bonds
Molecules, 2021 MP2/aug-cc-pVTZ calculations were carried out on complexes wherein the proton or the lithium cation is located between π-electron systems, or between π-electron and σ-electron units.
Mohammad Aarabi +2 more
doaj +1 more source
Ultra-stretchable hydrogels with hierarchical hydrogen bonds
Scientific Reports, 2020 Hydrogels are attractive for applications in intelligent soft materials and flexible electronics. Herein, we report a new hydrogel with a hierarchical hydrogen bond system consisting of (1) weak hydrogen bonds between N,N-dimethylacrylamides (DMAA) and ...
Yujing You +5 more
semanticscholar +1 more source
Química Nova, 2010 Hydrogen bonds formed through the interaction between a high electronic density center (lone electron pairs, π or pseudo-π bonds) and proton donors cause important electronic and vibrational phenomena in many systems.
Boaz G. Oliveira +2 more
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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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Allylammonium hydrogen oxalate hemihydrate
Acta Crystallographica Section E, 2014 In the title hydrated molecular salt, C3H8N+·C2HO4−·0.5H2O, the water O atom lies on a crystallographic twofold axis. The C=C—C—N torsion angle in the cation is 2.8 (3)° and the dihedral angle between the CO2 and CO2H planes in the anion is 1.0 (4)°.
Błażej Dziuk +2 more
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Tetramethylammonium dihydrogen phosphate hemihydrate
Acta Crystallographica Section E, 2009 In the crystal structure of the title compound, C4H12N+·H2PO4−·0.5H2O, the anions form an infinite hydrogen-bonded chain along the [1overline{1}0] direction.
Kyoko Fujita +3 more
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Hydrogen bonds in PC61BM solids
AIP Advances, 2015 We have studied the hydrogen bonds in PC61BM solids. Inter-molecular interaction is analyzed theoretically for the well-defined monoclinic (P21/n) structure.
Chun-Qi Sheng +6 more
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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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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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