Results 21 to 30 of about 195,184 (292)

Matrix‐free room‐temperature phosphorescence graphitic carbon nitride quantum dots based on halogen bond interactions for security applications

Nano Select, 2022
Herein, we first designed a one‐step strategy to achieve matrix‐free room temperature phosphorescence (RTP) materials by low temperature solid phase synthesis, using sodium citrate as carbon source and urea as nitrogen source.
Yuelin Kong, Yu He, Yaping Wang, Gongwu Song   +3 more
doaj   +1 more source

Discomfort Glare Perception by Drivers—Establishing a Link between Subjective and Psychophysiological Assessment

Applied Sciences, 2022
The broad application of LEDs for automotive lighting purposes, together with new discoveries in vision physiology, is creating new challenges in the field of glare perception.
Ladislav Stanke, Lucie Viktorová, Tomáš Dominik   +2 more
doaj   +1 more source

Competition between chalcogen bond and halogen bond interactions in YOX4:NH3 (Y = S, Se; X = F, Cl, Br) complexes: An ab initio investigation [PDF]

, 2016
Using ab initio calculations, the geometries, interaction energies and bonding properties of chalcogen bond and halogen bond interactions between YOX4 (Y = S, Se; X = F, Cl, Br) and NH3 molecules are studied. These binary complexes are formed through the
Asadollahi, S., Dadban Shahamat, Y., Esrafili, M.D.   +2 more
core   +1 more source

Crystal structures of bis(phenoxy)silicon phthalocyanines: increasing π–π interactions, solubility and disorder and no halogen bonding observed

Acta Crystallographica Section E: Crystallographic Communications, 2016
We report the syntheses and characterization of three solution-processable phenoxy silicon phthalocyanines (SiPcs), namely bis(3-methylphenoxy)(phthalocyanine)silicon [(3MP)2-SiPc], C46H30N8O2Si, bis(2-sec-butylphenoxy)(phthalocyanine)silicon [(2secBP)2 ...
Benoît H. Lessard, Alan J. Lough, Timothy P. Bender   +2 more
doaj   +1 more source

Investigation of chlorine radical chemistry in the Eyjafjallajkull volcanic plume using observed depletions in non-methane hydrocarbons [PDF]

, 2011
As part of the effort to understand volcanic plume composition and chemistry during the eruption of the Icelandic volcano Eyjafjallajkull, the CARIBIC atmospheric observatory was deployed for three special science flights aboard a Lufthansa passenger ...
Adam Wisher, Aiuppa, Angela K. Baker, Armin Rauthe-Schöch, Atkinson, Atkinson, Baker, Bobrowski, Bobrowski, Brenninkmeijer, Carl A. M. Brenninkmeijer, David E. Oram, Ehhalt, Flentje, Gasteiger, Gerlach, Gislason, Heue, Jobson, Jobson, Jobson, Lee, Peter F. J. van Velthoven, Platt, Pszenny, Roberts, Rose, Schuck, Schumann, Sokolov, Spivakovsky, Stohl, Tanja J. Schuck, von Glasow, von Glasow, Worton   +35 more
core   +1 more source

A Halogen-Containing Stilbene Derivative from the Leaves of Cajanus cajan that Induces Osteogenic Differentiation of Human Mesenchymal Stem Cells

Molecules, 2015
A new natural halogen-containing stilbene derivative was isolated from the leaves of Cajanus cajan (L.) Millsp. and identified as 3-O-(3-chloro-2-hydroxyl-propanyl)-longistylin A by comprehensive spectroscopic and chemical analysis, and named ...
Jia-Zhong Cai, Rong Tang, Gui-Fu Ye, Sheng-Xiang Qiu, Nen-Ling Zhang, Ying-Jie Hu, Xiao-Ling Shen   +6 more
doaj   +1 more source

Quantification of the depletion of ozone in the plume of Mount Etna [PDF]

, 2014
Volcanoes are an important source of inorganic halogen species into the atmosphere. Chemical processing of these species generates oxidised, highly reactive, halogen species which catalyse considerable O3 destruction within volcanic plumes. A campaign of
Aiuppa, A, Bobrowski, Nicole, Donohoue, Deanna, Surl, Luke, von Glasow, Roland   +4 more
core   +3 more sources

Halogen bonding stabilizes a cis-azobenzene derivative in the solid state: A crystallographic study [PDF]

, 2017
Crystals of trans- and cis-isomers of a fluorinated azobenzene derivative have been prepared and characterized by single-crystal X-ray diffraction. The presence of F atoms on the aromatic core of the azobenzene increases the lifetime of the metastable ...
Fernandez-Palacio F., Metrangolo P., Priimagi A., Resnati G., Saccone M., Siiskonen A., Terraneo G.   +6 more
core   +1 more source

Complementary, Cooperative Ditopic Halogen Bonding and Electron Donor-Acceptor π-π Complexation in the Formation of Cocrystals

Molecules, 2022
This study expands and combines concepts from two of our earlier studies. One study reported the complementary halogen bonding and π-π charge transfer complexation observed between isomeric electron rich 4-N,N-dimethylaminophenylethynylpyridines and the ...
Erin D. Speetzen, Chideraa I. Nwachukwu, Nathan P. Bowling, Eric Bosch   +3 more
doaj   +1 more source

Synthesis and enzymatic ketonization of the 5-(halo)-2-hydroxymuconates and 5-(halo)-2-hydroxy-2,4-pentadienoates

Beilstein Journal of Organic Chemistry, 2017
5-Halo-2-hydroxymuconates and 5-halo-2-hydroxy-2,4-pentadienoates are stable dienols that are proposed intermediates in bacterial meta-fission pathways for the degradation of halogenated aromatic compounds.
Tyler M. M. Stack, William H. Johnson Jr., Christian P. Whitman   +2 more
doaj   +1 more source