Results 11 to 20 of about 2,348,481 (310)
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
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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
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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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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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
“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
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A Mechanochromic Hydrogen‐Bonded Rotaxane [PDF]
Macromolecular Rapid Communications, 2020 AbstractTensile forces influence a variety of important biological processes and force sensors are required to study these processes in vivo. Current force sensors are often tailor‐made for a specific application, or activate at much higher forces than those observed at the cellular or tissue level. A versatile force sensor, with tunable mechanical and
Rafael Sandoval‐Torrientes +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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Supercritical Water is not Hydrogen Bonded [PDF]
Angewandte Chemie, 2020 AbstractThinking about water is inextricably linked to hydrogen bonds, which are highly directional in character and determine the unique structure of water, in particular its tetrahedral H‐bond network. Here, we assess if this common connotation also holds for supercritical water.
Philipp Schienbein, Dominik Marx
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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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