scholarly journals Generation of catalytically active materials from a liquid metal precursor

2015 ◽  
Vol 51 (74) ◽  
pp. 14026-14029 ◽  
Author(s):  
Faegheh Hoshyargar ◽  
Husnaa Khan ◽  
Kourosh Kalantar-zadeh ◽  
Anthony P. O'Mullane
Keyword(s):  
Electron Transfer ◽  
Liquid Metal ◽  
Alkaline Solution ◽  
Potassium Ferricyanide ◽  
Transfer Reactions ◽  
Active Materials ◽  
Nitrophenol Reduction ◽  
Catalytically Active ◽  
Liquid Metal Alloy ◽  
Facile Route

A facile route to prepare catalytically active materials from a liquid metal alloy is introduced. Sonication of liquid galinstan (GaInSn) in alkaline solution or treating it with reducing agents generates In : Sn rich microspheres that are catalytically active for electron transfer reactions such as potassium ferricyanide and 4-nitrophenol reduction.

Photocatalytically Active Materials with Pyridinium-enolate Partial Structures

2008 ◽  
Vol 63 (4) ◽  
pp. 465-472 ◽  
Author(s):  
Andreas Schmidt ◽  
Marcel Albrecht
Keyword(s):  
Electron Transfer ◽  
Polymeric Materials ◽  
Transfer Reactions ◽  
Reaction Conditions ◽  
Active Materials ◽  
Electron Transfer Reactions ◽  
Thermogravimetric Analyses ◽  
Partial Structures ◽  
Merrifield Resin

Abstract2,3-Dichloro-1,4-naphthoquinone and tetrabromo- or tetrachloro-1,4-benzoquinone were converted into pyridinium enolate betaines by reaction with pyridine or 4,4′-bipyridine. The reaction conditions were applied to poly-(4-vinylpyridine) and a modified Merrifield resin to obtain functionalized polymeric materials. These were examined in thermogravimetric analyses. Reversible photocatalytic electron transfer reactions in the presence of proflavinium and EDTA as sensitizer and sacrificial donor, respectively, were examined. All monomeric and polymeric materials, except for one, proved to be active.

A new heterocyclic ring closure in ferricyanide oxidation of 2,4,6-triphenylpyridinium salts

1983 ◽  
Vol 48 (11) ◽  
pp. 3307-3314 ◽  
Author(s):  
Petr Nesvadba ◽  
Petr Štrop ◽  
Josef Kuthan
Keyword(s):  
Alkaline Solution ◽  
Heterocyclic Ring ◽  
Potassium Ferricyanide ◽  
Probable Mechanism ◽  
Ring Closure ◽  
Pyridinium Salts ◽  
Mechanism Of Formation ◽  
Pyrrole Derivatives ◽  
Quaternary Pyridinium Salts ◽  
Heterocyclic Derivatives

The quaternary pyridinium salts Ia-Ic react with alkaline solution of potassium ferricyanide to give the condensed heterocyclic derivatives IIIa, b, IV, whereas the salts Id-If give the pyrrole derivatives IIa-IIc under the same conditions. The diaza heterocycle IIIa reacts with methyl iodide to give methoiodide V, whereas by action of bromine it produces two monobromo derivatives VIa, b. The pyrrole derivatives IIa, b give monobromo derivatives IId, e on bromination. A probable mechanism of formation of the heterocyclic derivatives is discussed.

Quantum effects in adiabatic electrochemical electron-transfer reactions

1997 ◽  
Vol 220 (1-2) ◽  
pp. 95-114 ◽  
Author(s):  
M.T.M. Koper ◽  
J.-H. Mohr ◽  
W. Schmickler
Keyword(s):  
Electron Transfer ◽  
Quantum Effects ◽  
Transfer Reactions ◽  
Electron Transfer Reactions
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