Showing papers in "Chemical Communications in 2003"

TL;DR: Eutectic mixtures of urea and a range of quaternary ammonium salts are liquid at ambient temperatures and have interesting solvent properties.

TL;DR: Recent advances in the synthesis of various magnetic nanoparticles using colloidal chemical approaches are reviewed and ferrite nanoparticles have been synthesized by the thermal decomposition of organometallic precursors followed by oxidation or by low-temperature reactions inside reverse micelles.

TL;DR: In this article, a new synthesis route to high-quality large mesoporous cubic Ia3d silica is reported, utilizing a triblock copolymer (EO20PO70EO20) mixture for the structure direction in aqueous solution.

TL;DR: Aqueous H2O2 is an ideal oxidant, when coupled with a tungstate complex and a quaternary ammonium hydrogensulfate as an acidic phase-transfer catalyst in an economically, technically, and environmentally satisfying manner.

TL;DR: Hydrogen adsorption has been studied in the nanoporous metal-benzenedicarboxylate M(OH)(O2C-C6H4-CO2) (M = Al3+, Cr3+); these solids show a hydrogen storage capacity of 3.8 and 3.1 wt.% respectively when loaded at 77 K under 1.6 MPa.

TL;DR: A number of instructive examples of such synthetic strategies from the principal author's laboratories are discussed and their applications in cascade reactions and biomimetic strategies are discussed.

TL;DR: Crystal engineering is a rapidly expanding global discipline practised by scientists with diverse interests in the modelling, synthesis, evaluation and utilization of crystalline solids.

TL;DR: A novel ZnIn2S4 catalyst synthesized by hydrothermal method shows high and stable photocatalytic activity for water reduction under visible light illumination.

TL;DR: In this article, the authors describe the selective and mild aerobic oxidation of primary alcohols to aldehydes in acetonitrile : water (2 : 1) in the presence of 2,2,6,6-tetramethylpiperidinyl-1-oxy (TEMPO) and a base as cocatalysts.

TL;DR: Palladacycles are amongst the most active catalysts in Heck-type carbon-carbon bond formation and related carbon-heteroatom bond forming reactions and their ease of synthesis, facile modification and comparative stability all act to enhance their appeal.

TL;DR: It has become clear that a wide array of multiple component pharmaceutical phases, so called pharmaceutical co-crystals, can be rationally designed using crystal engineering, and the strategy affords new intellectual property and enhanced properties for pharmaceutical substances.

TL;DR: Novel Brønsted acid-base ionic liquids, derived from a simple combination of a wide variety of organic amines with bis(trifluoromethanesulfonyl) amide, are electroactive for H2 oxidation and O2 reduction at a Pt electrode under non-humidifying conditions, which shows the prospect of the use of protic ionsic liquids as new materials for anhydrous proton conductors at elevated temperatures.

TL;DR: 1-Alkyl-3-methylimidazolium containing ionic liquids with hexafluorophosphate, bis(trifyl)imide, tetrafluoroborate, and chloride anions form liquid clathrates when mixed with aromatic hydrocarbons.

TL;DR: A solar-to-electric conversion efficiency of 6.1% is achieved with this new dye, compared to 6.3% for N3 dye under the same experimental conditions as mentioned in this paper.

TL;DR: Synthesis of clean double-walled carbon nanotubes by a catalytic chemical vapour deposition (CCVD) method is reported, leading to gram-scale amounts of clean carbon Nanotubes, 77% of which are double-Walled carbonnanotubes.

TL;DR: In this paper, the authors showed that reducing Cu(OH)42− with hydrazine hydrate and glucose in the presence of a structure-directing surfactant at room temperature gave Cu and Cu2O nanotubes/nanorods, respectively.

TL;DR: The synthesis of propylene carbonate from propylene oxide and carbon dioxide under supercritical conditions in the presence of 1-octyl-3-methylimidazolium tetrafluoroborate was achieved in nearly 100% yield and 100% selectivity within 5 minutes, whose TOF value is 77 times larger than those so far reported.

TL;DR: In this feature article, the development of linear quadruple hydrogen bonded systems is discussed, emphasizing applications in supramolecular chemistry and self-assembly.

TL;DR: The formation of micelles in 1-butyl-3-methyl imidazolium chloride and hexafluorophosphate were explored using different surfactants and the solvation behavior of the new micellar-ionic liquid solutions examined using inverse gas chromatography.

TL;DR: In this paper, the first direct evidence for inhibition of crystallization in ionic liquids by polymorphism was shown for 1-butyl-3-methylimidazolium chloride.

TL;DR: Gly-His-Leu- leu- Leu-Cys coated CdS quantum dots detected Cu2+ and Ag+ selectively with high sensitivity, below 0.5 microM.

TL;DR: Amide and alkoxide coordination complexes of calcium supported by β-diiminato and bulky trispyrazolylborate complexes are reported together with their activity in lactide ring-opening polymerization; some are amongst the most active systems discovered as discussed by the authors.

TL;DR: The history of electroluminescence in transition metal complexes is reviewed and the issues that need to be addressed for these materials to succeed in display and lighting applications are discussed.

TL;DR: In this article, two crystal structures of PCBM, obtained from different crystallisation solvents, are presented; a proposed link with solvent dependence of the efficiency of MDMO-PPV:PCBM solar cells is described.

TL;DR: Convenient and commercially viable synthesis conditions are described, providing efficient and reproducible control of pore connectivity and pore wall thickness for the synthesis of high quality SBA-15 mesoporous silica.

TL;DR: This article describes recent developments in the synthesis of macrocycles having rigid, monocyclic skeletons composed of arylene and ethynylene units and the studies on their self-assembling behavior.

TL;DR: The one-word answer to the title question is still “No’, although at certain levels of discussion a “Maybe”, or even a conditional “Yes” may be entertained as possible responses.

TL;DR: An efficient and novel polyene-dye-sensitized nanocrystalline TiO2 solar cells producing a 6.8% solar energy-to-electricity conversion efficiency under AM 1.5 irradiation is developed.

TL;DR: This review focuses on recent developments and advances in the field of molecularly imprinted materials, with special emphasis on applications in immunoassays and sensors recently developed by the group and by others.

TL;DR: The nanocrystalline BiVO4 film electrode on conducting glass showed an excellent efficiency for the decomposition of water under visible light.