Results 31 to 40 of about 2,472,430 (340)

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, Ivana Císařová, Irena Matulková   +2 more
doaj   +1 more source

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
doaj   +1 more source

Fifteen 4-(2-methoxyphenyl)piperazin-1-ium salts containing organic anions: supramolecular assembly in zero, one, two and three dimensions

Acta Crystallographica Section E: Crystallographic Communications, 2020
Fifteen 4-(2-methoxyphenyl)piperazin-1-ium salts containing organic anions have been prepared and structurally characterized. In the isostructural 4-chlorobenzoate and 4-bromobenzoate salts, C11H17N2O+·C7H4ClO2− (I) and C11H17N2O+·C7H4BrO2− (II), and the
Chayanna Harish Chinthal, Channappa N. Kavitha, Hemmige S. Yathirajan, Sabine Foro, Ravindranath S. Rathore, Christopher Glidewell   +5 more
doaj   +1 more source

Disposition of Federally Owned Surpluses [PDF]

, 1944
PDZ domains are scaffolding modules in protein-protein interactions that mediate numerous physiological functions by interacting canonically with the C-terminus or non-canonically with an internal motif of protein ligands. A conserved carboxylate-binding
A Bach, A Bach, A Bach, BA Appleton, BH Chang, BJ Hillier, BZ Harris, CN Chi, CN Chi, CN Chi, DA Doyle, E Chapman, E Kim, E Kim, ET Powers, FI Valiyaveetil, G Hultqvist, GM Elias, GS Beligere, H Remaut, H Tochio, H Tochio, HJ Lee, J Schultz, J Schultz, JA Wells, JF Amacher, JNN Eildal, JT Andreasen, JT Koh, KK Dev, KS Bateman, L Funke, M Aarts, M Sheng, M Vila-Perelló, MA Stiffler, MD Hill, MR Arkin, N Calosci, NX Wang, OA Karlsson, R Tonikian, RN McLaughlin Jr., S Deechongkit, S Seedorff, SH Gee, TW Muir, W Feng, Y Zhang, Z Songyang   +50 more
core   +2 more sources

Robust, Stretchable, and Self-Healable Supramolecular Elastomers Synergistically Cross-Linked by Hydrogen Bonds and Coordination Bonds.

ACS Applied Materials and Interfaces, 2019
Polymeric elastomers integrated with high mechanical toughness and excellent self-healing ability can find attractive applications in electronic skin, soft robotics, and electrical devices.
Xianzhang Wu, Jinqing Wang, Jingxia Huang, Shengrong Yang   +3 more
semanticscholar   +1 more source

“Hydridic Hydrogen-Bond Donors” Are Not Hydrogen-Bond Donors [PDF]

Journal of the American Chemical Society
Herein, 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, Pascal Vermeeren, F. Matthias Bickelhaupt, Célia Fonseca Guerra   +3 more
openaire   +4 more sources

The Nature of Hydrogen Bonds: A Delineation of the Role of Different Energy Components on Hydrogen Bond Strengths and Lengths

Chemistry - An Asian Journal, 2019
Hydrogen bonds are a complex interplay between different energy components, and their nature is still subject of an ongoing debate. In this minireview, we therefore provide an overview of the different perspectives on hydrogen bonding.
Stephanie C. C. van der Lubbe, C. Fonseca Guerra   +1 more
semanticscholar   +1 more source

Analysis of Hydrogen Bonds in Crystals

Crystals, 2016
The determination of crystal structures provides important information on the geometry of species constituting crystals and on the symmetry relations between them.
Sławomir J. Grabowski
doaj   +1 more source

Systematic Hydrogen‐Bond Manipulations To Establish Polysaccharide Structure–Property Correlations [PDF]

, 2019
A dense hydrogen‐bond network is responsible for the mechanical and structural properties of polysaccharides. Random derivatization alters the properties of the bulk material by disrupting the hydrogen bonds, but obstructs detailed structure–function ...
Yu, Yang, Tyrikos-Ergas, Theodore, Zhu, Yuntao, Fittolani, Giulio, Bordoni, Vittorio, Singhal, Ankush, Fair, Richard J., Grafmüller, Andrea, Seeberger, Peter H., Delbianco, Martina   +9 more
core   +3 more sources

Bis(dimethylammonium) 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)dibenzoate dihydrate

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
doaj   +1 more source