Results 11 to 20 of about 78,150 (329)

Computer quantum-chemical modeling of the interaction of selenium nanoparticles with quaternary ammonium compounds

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2023
In this paper, a computer quantum-chemical simulation of the interaction of selenium nanoparticles with quaternary ammonium compounds was carried out, in which models of molecular complexes, electron density distribution, as well as higher populated and ...
A.V. Blinov, M.A. Pirogov, A.A. Gvozdenko, A.B. Golik, Z.A. Rekhman, M.A. Kolodkin, D.D. Filippov   +6 more
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Transition metal-catalyzed construction of C-X bonds via cleavage of C-N bond of quaternary ammonium salts

AIMS Molecular Science, 2023
Amines are abundant in natural product chemistry and are readily available chemical raw materials. The C-N bonds of amines are difficult to break due to the large C-N bond energy.
Qingle Zeng, Fuhai Li , Xianjie Yin
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Application of Quaternary Ammonium Compounds as Compatibilizers for Polymer Blends and Polymer Composites—A Concise Review

Applied Sciences, 2021
A wide variety of quaternary ammonium compounds (QACs) have escalated the attraction of researchers to explore the application of QACs. The compounds have frequently been synthesized through alkylation or quaternization of tertiary amines with alkyl ...
Ahmad Adlie Shamsuri, Siti Nurul Ain Md. Jamil   +1 more
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Quaternary Ammonium Compounds as Candidate Photoprotective Compounds in Reef-Building Corals

Frontiers in Marine Science, 2022
Quaternary ammonium compounds (QACs) – e.g., betaines – have a chemical structure related to that of the tertiary sulfonium compounds (TSCs) – e.g., dimethylsulfoniopropionate – explaining why these two classes of coral metabolites are often studied and ...
Richard W. Hill
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N-(((1S,5R)-6,6-Dimethylbicyclo[3.1.1]hept-2-en-2-yl)methyl)-3-((1R,5S)-6,6-dimethylbicyclo[3.1.1]hept-2-ene/ane-2-carboxamido)-N,N-dimethylpropan-1-aminium Bromide

Molbank, 2023
The synthesis of the title compounds was performed from (-)-cis-myrtanic and (-)-myrtenic acids. The compounds obtained were characterized using 1H- and 13C-NMR, IR, and high-resolution mass spectrometry.
Ilmir R. Gilfanov, Roman S. Pavelyev, Liliya E. Nikitina, Larisa L. Frolova, Alexey V. Popov, Ilfat Z. Rakhmatullin, Vladimir V. Klochkov, Svetlana A. Lisovskaya, Elena Yu. Trizna, Denis Yu. Grishaev, Airat R. Kayumov   +10 more
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Characterization of Cleaning and Disinfection Product Use, Glove Use, and Skin Disorders by Healthcare Occupations in a Midwestern Healthcare Facility

Buildings, 2022
Healthcare facility staff use a wide variety of cleaning and disinfecting products during their daily operations, many of which are associated with respiratory or skin irritation or sensitization with repeated exposure. The objective of this study was to
Lisa Kobos, Kim Anderson, Laura Kurth, Xiaoming Liang, Caroline P. Groth, Lucy England, A. Scott Laney, M. Abbas Virji   +7 more
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Modern chemical disinfectants and antiseptics. Part II

Журнал органічної та фармацевтичної хімії, 2021
Aim. To generalize and systematize information on the properties of modern chemical disinfectants and antiseptic agents (DA and AA) – peroxide compounds, surfactants, salts of heavy metals and metals of variable valence in the highest oxidation state ...
Vasyl M. Britsun, Nataliya V. Simurova, Inna V. Popova, Oleksii V. Simurov   +3 more
doaj   +1 more source

Synthesis, Analysis, Cholinesterase-Inhibiting Activity and Molecular Modelling Studies of 3-(Dialkylamino)-2-hydroxypropyl 4-[(Alkoxy-carbonyl)amino]benzoates and Their Quaternary Ammonium Salts

Molecules, 2017
Tertiary amines 3-(dialkylamino)-2-hydroxypropyl 4-[(alkoxycarbonyl)amino]benzoates and their quaternary ammonium salts were synthesized. The final step of synthesis of quaternary ammonium salts was carried out by microwave-assisted synthesis.
Tereza Padrtova, Pavlina Marvanova, Klara Odehnalova, Renata Kubinova, Oscar Parravicini, Adriana Garro, Ricardo D. Enriz, Otakar Humpa, Michal Oravec, Petr Mokry   +9 more
doaj   +1 more source

Complexing additives to reduce the immiscible phase formed in the hybrid ZnBr2 flow battery [PDF]

, 2017
The zinc-bromine redox flow battery (RFB) is one of a very few commercially viable RFB energy storage system capable of integration with intermittent renewable energy sources to deliver improved energy management.
Berlouis, L., Bryans, D., McMillan, B.G., Spicer, M., Wark, A.   +4 more
core   +1 more source

Titrimetric methods for determining cationic surfactants

Журнал органічної та фармацевтичної хімії, 2022
Aim. To generalize and systematize information on titrimetric methods for determining quaternary ammonium compounds (QACs). Results and discussion.
Mykola Ye. Blazheyevskіy, Ewa J. Bulska, Andrii M. Tupys, Olena V. Koval’ska   +3 more
doaj   +1 more source