Results 21 to 30 of about 1,341,068 (298)

Redox-Modulated Fluorescent Halogen Bonding and Hydrogen Bonding Anion Sensing [PDF]

open access: yes, 2023
Anion sensing via either optical or electrochemical readouts has separately received enormous attention, however a judicious combination of the advantages of both modalities remains almost entirely unexplored. Toward this goal we herein disclose a series
Paul D., Beer   +4 more
core   +2 more sources

Single crystal X-ray structural dataset of 1,2,4-dithiazolium tetrafluoroborate

open access: yesData in Brief, 2022
Herein, we present the crystallographic dataset of 1,2,4-dithiazolium tetrafluoroborate. Single crystal X-ray structural analysis evidences that the 1,2,4-dithiazolium ring is almost planar. The 1,2,4-dithiazolium and tetrafluoroborate ions contribute in
Balasubramaniam Arul Prakasam   +4 more
doaj   +1 more source

Hydrogen bonding penalty upon ligand binding.

open access: yesPLoS 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

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

open access: yesJournal 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   +3 more
openaire   +4 more sources

A pH‐Switchable Triple Hydrogen‐Bonding Motif

open access: yesChemistryOpen, 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   +4 more
doaj   +1 more source

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

open access: yesIUCrData, 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   +3 more
doaj   +1 more source

Ethidium heptafluorobutyrate

open access: yesIUCrData, 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

Supercritical Water is not Hydrogen Bonded [PDF]

open access: yesAngewandte 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
openaire   +4 more sources

Effect of hydrogen bonding and complexation with metal ions on the fluorescence of luotonin A [PDF]

open access: yes, 2013
Fluorescence characteristics of a biologically active natural alkaloid, luotonin A (LuA), were studied by steady-state and time-resolved spectroscopic methods.
Biczók, László, Miskolczy, Zsombor
core   +1 more source

A Mechanochromic Hydrogen‐Bonded Rotaxane [PDF]

open access: yesMacromolecular 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
openaire   +3 more sources

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