A tuxedo for iodine atoms

Article Abstract:

The synthesis of the first non-enzymatic, high-yielding, enantioselective cyclization induced by a halogen atom is described. The researchers have used iodine and a relatively simple reagent that comprises a chemical tuxedo that fits around an iodine atom, creating a chiral environment for and enhancing the reactivity of, that atom.

United States, Atomic properties, Halogen compounds

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Control of ion selectivity in potassium channels by electrostatic and dynamic properties of carbonyl ligands

Article Abstract:

Molecular dynamics simulations for the potassium channel KcsA, which show that the carbonyl groups coordinating the ion in the narrow pore are indeed very dynamic and that their intrinsic electrostatic properties control ion selectivity. This finding highlights the importance of the classical concept of field strength.

Potassium, Potassium (Chemical element), Carbonyl compounds

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Modulated structure of solid iodine during its molecular dissociation under high pressure

Article Abstract:

Research has been conducted on pressure-induced dissociation of solid iodine. The results of the quasi-hydrostatic powder X-ray diffraction measurements have revealed intermediate phase during this dissociation.

Japan, Analysis, Usage, Composition, X-ray diffraction, Chemistry, Analytic, Analytical chemistry, Dissociation, Dissociation reactions, Properties, Solids, Structure

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