نتایج جستجو برای: tetraethylammonium

تعداد نتایج: 1840  

Journal: :Acta chimica Slovenica 2013
Samikannu Ramesh Appaswami Lalitha

A novel and practical method has been developed for the synthesis of β-cyanoketones using tetraethylammonium cyanide (Et4NCN, TEACN) / Sc(III) triflate and chalcones without the liberation of toxic HCN gas. Availability, safety, easy handling of the reagents, mild conditions of the reaction and high yields, make this method an attractive protocol for the direct synthesis of cyano substituted 1,...

2017
Slawomir Filipek

The electrochemical reduction of benzalacetone (BA) has been studied at mercury cathodes in N,N-dimethylformamide solutions by the techniques of cyclic voltammetry and controlled potential coulometry. The radical anion (BA'-) forms ion pairs with tetraethylammonium cations and then disappears in oligomerization processes. Atentative structureof the dimer BA BA"-... (C2H5)4N+is suggested on the ...

Journal: :Chemical Engineering Science 2022

The primary limitation of millifluidic reactors used for (nano)particle synthesis is fouling, which inherent to small channel devices. This work presents an approach fouling-free particle production by utilising a novel device achieve wall-free environment, where the particles are formed. design was based on computational fluid dynamics (CFD) simulations and produced 3-layer co-axial flow in tw...

Journal: :Journal of Power Sources 2021

Azobenzene (azoB) is a promising anode active material for nonaqueous redox flow battery (NARFB), but the performance assembled with azoB rather poor. Here, we show that rate of NARFB and 2,5-di-tert-butyl-1-methoxy-4-[2?-methoxyethoxy] benzene (DBMMB) as anolyte catholyte materials can be significantly enhanced by optimizing solvent, supporting electrolyte, membrane. The synergistic interactio...

Journal: :Dalton transactions 2014
Masa-aki Saito Masato Hashimoto

A novel aquachloridooxidodiperoxidomolybdate(vi), [MoClO(O2)2(OH2)](-), was crystallised as tetraethylammonium and triethylmethylammonium salts from strongly acidic aqueous solutions, and was structurally analysed by single crystal X-ray diffraction and NMR spectroscopy. The aqueous behaviour of the present anion observed by (17)O NMR agrees with that reported in a previous speciation study.

Journal: :The Journal of General Physiology 1990
C S Hui W K Chandler

Intramembranous charge movement was measured in cut twitch fibers mounted in a double Vaseline-gap chamber with either a tetraethylammonium chloride (TEA.Cl) or a TEA2.SO4 solution (13-14 degrees C) in the central pool. Charge vs. voltage data were fitted by a single two-state Boltzmann distribution function. The average values of V (the voltage at which steady-state charge is equally distribut...

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