Results 11 to 20 of about 35,646 (266)

Silver Nanoparticles Stabilized with Phosphorus-Containing Heterocyclic Surfactants: Synthesis, Physico-Chemical Properties, and Biological Activity Determination

open access: yesNanomaterials, 2021
Phosphorus-containing heterocyclic cationic surfactants alkyldimethylphenylphospholium bromides with the alkyl chain length 14 to 18 carbon atoms were used for the stabilization of silver nanodispersions.
Martin Pisárčik   +9 more
doaj   +1 more source

Activation of Cyanate Anions by Phosphine Radical Cations Enables Formal Hydrocarbamoylation of Alkenes. [PDF]

open access: yesAngew Chem Int Ed Engl
A photocatalytic formal hydrocarbamoylation reaction that employs a cyanate anion as the C1 source and provides N‐acyl iminophosphorane products from activated alkenes is described. Mechanistic investigations suggest generation of a phosphoranyl radical by addition of the cyanate anion to a phosphine radical cation, which enables the delivery of the ...
Vojáčková P, Studer A.
europepmc   +3 more sources

Interplay of Ionic Species in Salts of Homoleptic Quaternary Phosphonium Cations Bearing Linear Biphenyl Moieties

open access: yesCrystals, 2022
Quaternary phosphonium salts are popular candidates used in many chemical transformations and synthetic chemistry, notably in catalysis. We have examined the single crystals of two bulky phosphonium compounds, tetra([1,1′-biphenyl]-4-yl) phosphonium ...
Monica Bernard Tan   +4 more
doaj   +1 more source

Novel Phosphonium-Based Ionic Liquid Electrolytes for Battery Applications

open access: yesMolecules, 2022
In this study, we address the fundamental question of the physicochemical and electrochemical properties of phosphonium-based ionic liquids containing the counter-ions bis(trifluoromethanesulfonyl)imide ([TFSI]−) and bis(fluorosulfonyl)imide ([FSI]−). To
Andreas Hofmann   +5 more
doaj   +1 more source

Allenic Phosphonium Borate Zwitterions via a Transient Phosphonium Allenylidene [PDF]

open access: yes, 2021
We describe the synthesis of alkynyl phosphanes of the type R2P-C≡C-C(OCH3)Ph2, (R = Ph, Cy) and investigate their transformation to geminally substituted phosphonium borato-allene zwitterions upon their reaction with B(C6F5)3. The mechanism for this transformation was studied experimentally and by density functional theory computations (DFT ...
Lucas Torres   +2 more
openaire   +1 more source

Enhancing the Mitochondrial Uptake of Phosphonium Cations by Carboxylic Acid Incorporation

open access: yesFrontiers in Chemistry, 2020
There is considerable interest in developing drugs and probes targeted to mitochondria in order to understand and treat the many pathologies associated with mitochondrial dysfunction.
Laura Pala   +10 more
doaj   +1 more source

Stabilisation of the superoxide anion in bis(fluorosulfonyl)imide (FSI) ionic liquid by small chain length phosphonium cations: Voltammetric, DFT modelling and spectroscopic perspectives

open access: yesElectrochemistry Communications, 2021
Ionic liquids (ILs) containing the bis(fluorosulfonyl)imide anion, FSI, have been investigated as electrolytes for metal-air batteries. Full chemical reversibility is found for the reduction of oxygen to superoxide at 60 °C under short time scale ...
Laura Garcia-Quintana   +7 more
doaj   +1 more source

Transport of Zn(II), Fe(II), Fe(III) across polymer inclusion membranes (PIM) and flat sheet supported liquid membranes (SLM) containing phosphonium ionic liquids as metal ion carriers [PDF]

open access: yes, 2016
This is an Accepted Manuscript of an article published by Taylor & Francis Group in Separation Science and Technology on 18/04/2016, available online: http://www.tandfonline.com/doi/full/10.1080/01496395.2016.1174265In this work transport of Zn(II), Fe ...
Baczynska, Monika   +5 more
core   +2 more sources

A novel quaternary phosphonium modified hierarchically macro/mesoporous silica synthesized by radiation with high selectivity for adsorption of Perrhenate

open access: yesFushe yanjiu yu fushe gongyi xuebao, 2021
Hierarchically porous silica was alkylated with trimethylchlorosilane, and a novel quaternary phosphonium modified hierarchically porous silica (HPS-C-P) was prepared by radiation-induced grafting of quaternary phosphonium.
ZHONG Shouchao   +8 more
doaj   +1 more source

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