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Field enhanced bulk conductivity of acceptor-doped BaTi1−xCaxO3−x ceramics
(American Institute of Physics, 2010)
The electrical properties of Ca-doped BaTiO3 are very different when Ca substitutes onto Ba or Ti sites. The p-type semiconductivity of Ti-substituted ceramics increases reversibly by one to two orders of magnitude under ...
A Tetraferrocenyl-Resorcinarene Cavitand as a Redox-Switchable Host of Ammonium Salts
(Wiley, 2015-06-10)
Tetraannulation of a resorcinarene-octaamino cavitand with ferrocenecarboxaldehyde allows the preparation of a tetrabenzimidazole-resorcinarene cavitand with four ferrocenyl moieties directly linked to the C2 atom of the ...
Crystal structures of the HCl salts of pseudopeptidic macrocycles display ‘‘knobs into holes’’ hydrophobic interactions between aliphatic side chains
(Royal Society of Chemistry, 2009)
The crystal structures of three HCl salts of pseudopeptidic macrocycles show a H-bonding tubular stack of the rings, where the amino acidic side chains (Val, Leu, Ile) display an inter-columnar “knobs into holes” hydrophobic ...
AuNP−polymeric ionic liquid composite multicatalytic nanoreactors for one-pot cascade reactions
(American Chemical Society, 2016)
Different AuNP-PIL nanocomposites have been developed
as bifunctional catalysts in which the IL-like units promote the Knoevenagel
condensation through a dual electrophilic/nucleophilic activation relay
mechanism and ...
Singlet oxygen generation using a porous monolithic polymer supported photosensitizer: potential application to the photodynamic destruction of melanoma cells
(Royal Society of Chemistry, 2009-01)
Photogeneration of singlet oxygen (1O2) by rose bengal is improved through the use of a porous
monolithic polymer (PMP) as a support, as compared to a classic gel-type resin matrix. This type of
monolithic polymeric ...
Copper-mediated reduction of azides under seemingly oxidising conditions: catalytic and computational studies
(Royal Society of Chemistry, 2018)
The reduction of aryl azides in the absence of an obvious reducing agent is reported. Careful catalyst design led to the production of anilines in the presence of water and air. The reaction medium (toluene/water) is crucial ...
New chromium-calcium titanate red ceramic pigment
(Trans Tech Publications, 2010)
Synthesis and characterization of a new chromium- calcium titanate red ceramic pigment is described in this communication. The pigment is based on the solid solution of chromium (IV) in calcium titanate and was characterized ...
Unveiling anion-induced folding in tripodal imidazolium receptors by ion-mobility mass spectrometry
(The Royal Society of Chemistry, 2021-08-02)
The anion-induced folding of tripodal imidazolium receptors has been investigated by NMR spectroscopy, electrospray ionization ion mobility mass spectrometry and DFT calculations. Such folding can be switched by anion ...
Development of efficient processes under flow conditions based on catalysts immobilized onto monolithic supported ionic liquid-like phases
(International Union of Pure and Applied Chemistry, 2009)
The introduction of imidazolium subunits into polystyrene-divinylbenzene (PS-DVB) polymers enables the preparation of a variety of catalytic systems. Those include the stabilization of catalytically active Pd nanoparticles ...
Ruthenium molecular complexes immobilized on graphene as active catalysts for the synthesis of carboxylic acids from alcohol dehydrogenation
(Royal Society of Chemistry, 2016-09)
Ruthenium complexes containing N-heterocyclic carbene ligands functionalized
with different polyaromatic groups (pentafluorophenyl, anthracene, and pyrene) are
immobilized onto the surface of reduced graphene oxide. The ...