Topic
Acetonitrile
About: Acetonitrile is a research topic. Over the lifetime, 11298 publications have been published within this topic receiving 175275 citations. The topic is also known as: cyanomethane & ethyl nitrile.
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TL;DR: In this paper, the bis(carbonyl)gold(I) salt, [Au(CO) 2 ][Sb 2 F 11 ], is achieved in a of gold(III) fluorosulfate, Au(SO 3 F) 3, in HSO3 F to give Au(CO)/Sb 3 F as an intermediate, followed by solvolysis in liquid antimony(V) fluoride in the presence of carbon monoxide.
Abstract: The synthesis of the bis(carbonyl)gold(I) salt, [Au(CO) 2 ][Sb 2 F 11 ], is achieved in a of gold(III) fluorosulfate, Au(SO 3 F) 3 , in HSO 3 F to give Au(CO)SO 3 F as an intermediate, followed by solvolysis in liquid antimony(V) fluoride in the presence of carbon monoxide. The use of 13 CO or C 18 O permits the synthesis of the corresponding isotopically labeled salts. The compound is thermally stable up to 130 o C.
133 citations
TL;DR: In this article, the electrocatalytic oxidation of hydrazine on pristine and on electro-oxidized carbon fibre electrodes modified by hemine was investigated in aqueous, methanolic and acetonitrile solutions.
132 citations
TL;DR: With acetonitrile as solvent, Ag-catalyzed intramolecular aminooxygenation produced imidazo[1,2-a]pyridine-3-carbaldehydes in moderate to good yields.
Abstract: Aqueous syntheses of methylimidazo[1,2-a]pyridines without any deliberate addition of catalyst are reported. Imidazo[1,2-a]pyrazine and imidazo[2,1-a]isoquinoline were also obtained in good yields under similar conditions. With acetonitrile as solvent, Ag-catalyzed intramolecular aminooxygenation produced imidazo[1,2-a]pyridine-3-carbaldehydes in moderate to good yields.
131 citations
TL;DR: The variation of diffusion coefficient with temperature was found to occur in an Arrhenius-type manner for all combinations of solute and solvent, and for a given ionic liquid, the diffusional activation energies of each species were not only closely equivalent to each other, but also to the RTIL's activation energy of viscous flow.
Abstract: Measurements on the diffusion coefficient of the neutral molecule N,N,N',N'-tetramethyl-para-phenylenediamine and the radical cation and dication generated by its one- and two-electron oxidation, respectively, are reported over the range 298-348 K in both acetonitrile and four room temperature ionic liquids (RTILs). Data were collected using single and double potential step chronoamperometry at a gold disk electrode of micrometer dimension, and analysed via fitting to the appropriate analytical expression or, where necessary, to simulation. The variation of diffusion coefficient with temperature was found to occur in an Arrhenius-type manner for all combinations of solute and solvent. For a given ionic liquid, the diffusional activation energies of each species were not only closely equivalent to each other, but also to the RTIL's activation energy of viscous flow. In acetonitrile supported with 0.1 M tetrabutylammonium perchlorate, the ratio in diffusion coefficients of the radical cation and dication to the neutral molecule were calculated as 0.89 +/- 0.05 and 0.51 +/- 0.03, respectively. In contrast, amongst the ionic liquids the same ratios were determined to be on average 0.53 +/- 0.04 and 0.33 +/- 0.03. The consequences of this dissimilarity are considered in terms of the modelling of voltammetric data gathered within ionic liquid solvents.
131 citations