Results 11 to 20 of about 581,916 (344)

Ethidium heptafluorobutyrate

IUCrData, 2022
In the title compound (systematic name: 3,8-diamino-5-ethyl-6-phenylphenanthridin-5-ium 2,2,3,3,4,4,4-heptafluorobutyrate), C21H20N3+·C4F7O2−, two ethidium ions, C21H20N3+ form a dimerized structure due to π–π interactions, even though they are ...
Runa Shimazaki, Masaaki Sadakiyo
doaj   +1 more source

Hydrogen Bonds

Molecules, 2023
The Topical Collection “Hydrogen Bonds” is a continuation of the previous Special Issue “Intramolecular Hydrogen Bonding 2021” [...]
openaire   +3 more sources

Compact phases of polymers with hydrogen bonding [PDF]

, 2003
We propose an off-lattice model for a self-avoiding homopolymer chain with two different competing attractive interactions, mimicking the hydrophobic effect and the hydrogen bond formation respectively. By means of Monte Carlo simulations, we are able to
A.D. Sokal, Antonio Trovato, H.S. Chan, I.M. Lifshitz, J. Borg, J. Ferkinghoff-Borg, J.P. Kemp, Jesper Ferkinghoff-Borg, K.A. Dill, L. Pauling, L.M. Gregoret, Mogens H. Jensen, N.D. Socci, P. Grassberger, T.P. Creamer, U.H.E. Hansmann, V.G. Rostiashvili, Y. Zhou   +17 more
core   +1 more source

Hydrogen bonding penalty upon ligand binding.

PLoS ONE, 2011
Ligand binding involves breakage of hydrogen bonds with water molecules and formation of new hydrogen bonds between protein and ligand. In this work, the change of hydrogen bonding energy in the binding process, namely hydrogen bonding penalty, is ...
Hongtao Zhao, Danzhi Huang
doaj   +1 more source

Intermolecular N-H...O=C hydrogen bonding in the crystal structure of 6-amino-1,3-dimethyluracil [PDF]

, 1993
The 6-amino- 1,3-dimethyluracil molecule [6-amino- 1,3- dimethyl-2,4(1H,3H)-pyrimidinedione], C6H9N302 (I), lies on a crystallographic mirror plane and participates in an extensive two-dimensional hydrogen-bonding network in the solid state.
Ferguson, George, Gallagher, John F., Howie, R. Alan, Hues-Urena, F., Low, John N., Moreno Carretero, M.N.   +5 more
core   +2 more sources

A pH‐Switchable Triple Hydrogen‐Bonding Motif

ChemistryOpen, 2020
A stimuli responsive linear hydrogen bonding motif, capable of in situ protonation and deprotonation, has been investigated. The interactions of the responsive hydrogen bonding motif with complementary partners were examined through a series of 1H NMR ...
Dr. Heather M. Coubrough, Dr. Barbora Balonova, Dr. Christopher M. Pask, Prof. Barry A. Blight, Prof. Andrew J. Wilson   +4 more
doaj   +1 more source

2,3-Dimethyl-1H-imidazol-3-ium chloride

IUCrData, 2020
The title salt, C5H9N2+·Cl−, exhibits multiple hydrogen-bonding interactions between the cationic imidazole moiety and the chloride anion. The protonated aromatic nitrogen moiety displays the shortest hydrogen-bonding interactions while weaker hydrogen ...
Grace Anderson, Arsalan Mirjafari, Matthias Zeller, Patrick C. Hillesheim   +3 more
doaj   +1 more source

Factors affecting the refractive index of amino acid-based deep eutectic solvents

Chemical Thermodynamics and Thermal Analysis, 2021
Effect of hydrogen-bonding donor, hydrogen-bonding acceptor, mole ratio, components and temperature on the refractive index of amino acid-based DESs is investigated.
Yu Chen, Xiaoxia Peng, Zixin Bi, Dongkun Yu, Yixuan Zhang, Yuting Guo, Xiaoqing Yang, Baolong Zhang, Tiancheng Mu   +8 more
doaj  

Triplet–Triplet Energy Transfer Study in Hydrogen Bonding Systems

CHIMIA, 2015
The 2,6-diiodoBodipy–styrylBodipy hydrogen bonding system was prepared to study the effect of hydrogen bonding on the triplet–triplet-energy-transfer (TTET) process. 2,6-DiiodoBodipy linked with N-acetyl-2,6-diaminopyridine (D-2) was used as the
Zhijia Wang, Jianzhang Zhao, Song Guo
doaj   +1 more source

Adenosinium 3,5-dinitrosalicylate [PDF]

, 2004
The crystal structure of adenosinium 3,5-dinitrosalicylicate, C10H14N5O4+烷H3N2O7-, shows the presence of a primary chain structure formed through homomeric head-to-tail cyclic R22(10) hydrogen-bonding interactions between hydroxy O- and both purine and ...
Healy, Peter, Smith, Graham, Wermuth, Urs   +2 more
core   +2 more sources