Beyond measurements of equilibria: An alpha-hemolysin nanopore is used as a single-molecule sensor to follow the effects of different salts on the complexation reaction of gamma-cyclodextrin and adamantane carboxylate (see picture). The kinetics underlying the dynamic equilibrium are studied to reveal qualitatively different dynamic actions of various cosolute salts.

The cyclic hydroboration of 2,7-dimethyl-2,6-octadiene (6) was studied. It was found that the stereochemical outcome of the reaction was dependent upon the solvent, temperature, time and the nature of the borane reagent. Pure racemic trans-2,5diisopropylborolane (14) was isolated following selective complexation of the cis-2,5diisopropylborolane (15) with 1-(2-hydroxyethyl)-pyrrolidine.

traditional systems for olefin/paraffin separation, like low-temperature distillation, are expensive and very energy consuming, and therefore, alternative separation methods are desired. facilitated transport membranes are new tools for this separation to be substituted in large scale separation of olefin-paraffin mixtures. to design a membrane process for olefin-paraffin separation, equilibriu...

Comproportionation reactions between MnCl2 and KMnO4 in the presence of arsonate or phosphonate ligands promote the cation-assisted assembly of high-nuclearity, wheel-shaped or toroidal {Mn8} () and {Mn24} () complexes; the closely corresponding reaction systems provide insights into the complexation behaviour of homologous phosphonate/arsonate ligand species.

Increased hydrophobicity of well-defined polyoxometalate clusters is possible through complexation with cationic surfactants in a one-pot reaction. The clusters, of toroid and spherical shape and colloidal dimensions, then organized into ordered, supramolecular assemblies, as shown schematically, are similar to classical liquid crystals. The increased solubility in organic media opens the door ...

The first hybrid crown ether with two adjacent disilane fragments was synthesized through reaction of O(Si2Me4Cl)2 (3) with O(C2H4OH)2. By means of DFT calculations, the complexation ability of 1,2,4,5-tetrasila[12]crown-4 (7) towards Li+ was determined to be considerably higher compared to [12]crown-4.

the stability constants and complexation reaction between l-glutamine, l-arginine andglycine with zn (ii) , co (ii) and ni (ii) were studied potentiometrically in aqueous solution at25° c and μ=0.1 m kno3. the overall stability constants log β´s of all species are obtained bycomputer refinement of ph-volume data using best computer program. several models weretested and the lowest δfit, the bes...