Angewandte Chemie International Edition

Cover image for Vol. 54 Issue 37

Editor: Peter Gölitz, Deputy Editors: Neville Compton, Haymo Ross

Online ISSN: 1521-3773

Associated Title(s): Angewandte Chemie, Chemistry - A European Journal, Chemistry – An Asian Journal, ChemistryOpen, ChemPlusChem, Zeitschrift für Chemie

54_37/2015Cover Picture: Template Synthesis of Linear-Chain Nanodiamonds Inside Carbon Nanotubes from Bridgehead-Halogenated Diamantane Precursors (Angew. Chem. Int. Ed. 37/2015)

Diamantane molecules form perfect linear-chain nanowires inside double-walled carbon nanotubes. In their Communication on page 10802 ff., H. Shinohara and co-workers describe how these nanowires are synthesized in a template reaction of dibrominated diamantane precursors in the hollow cavities of the carbon nanotubes. Under high vacuum and in the presence of iron nanocatalyst particles, the dehalogenated radical intermediates spontaneously form linear polymer chains within the nanotubes.

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Also of Interest

Diamantane molecules form perfect linear-chain nanowires inside double-walled carbon nanotubes. In their Communication on page 10802 ff., H. Shinohara and co-workers describe how these nanowires are synthesized in a template reaction of dibrominated diamantane precursors in the hollow cavities of the carbon nanotubes. Under high vacuum and in the presence of iron nanocatalyst particles, the dehalogenated radical intermediates spontaneously form linear polymer chains within the nanotubes.

Hydrogen Evolution

In their Communication on page 10751 ff., T. Asefa, W. Chen, X. Zou, et al. report an efficient hybrid hydrogen-evolution electrocatalyst consisting of molybdenum carbide nanoparticles embedded in nitrogen-rich carbon nanolayers. The synergistic effect between Mo2C and N dopants co-activates adjacent C atoms on the carbon nanolayers.

Photoelectrodes

T. Wang and J. Gong report recent research advances in using single-crystal semiconductors with narrow band gaps as photoelectrodes for solar water splitting in their Minireview on page 10718 ff.

Membranes

In their Communication on page 10843 ff., S. Li, M. Yu, et al. present greatly improved zeolite membranes from high-aspect-ratio zeolite seeds that show high performance in separating N2/CH4 mixtures.

54_37i/2015Inside Cover: Vinylation of Unprotected Phenols Using a Biocatalytic System (Angew. Chem. Int. Ed. 37/2015)

Sliding down the enzymatic cascade Unprotected phenols were selectively para-vinylated using pyruvate as the reagent by W. Kroutil, E. Busto, and Robert C. Simon in their Communication on page 10899 ff. The cover illustrates the overall transformation starting from a substituted phenol, which passes the three involved enzymes on its way down, leading to the expulsion of water and CO2 (Cover image: Verena A. Resch).

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54_37c/2015Inside Back Cover: Single-Crystal Semiconductors with Narrow Band Gaps for Solar Water Splitting (Angew. Chem. Int. Ed. 37/2015)

Narrow-band-gap single-crystal semiconductors have been considered inappropriate for solar water splitting largely because of the photocorrosion issue. However, several exciting breakthroughs have shown that the instability and other drawbacks of these materials can be overcome. In their Minireview on page 10718 ff., T. Wang and J. Gong describe recent research advances and highlight the most important approaches to using these semiconductors as efficient photoelectrodes.

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54_37b/2015Back Cover: Growth of High-Quality, Thickness-Reduced Zeolite Membranes towards N2/CH4 Separation Using High-Aspect-Ratio Seeds (Angew. Chem. Int. Ed. 37/2015)

Greatly improved zeolite membranes were prepared by using high-aspect-ratio zeolite seeds. In their Communication on page 10843 ff., S. Li, M. Yu, et al. report about slice-shaped seeds with a large aspect ratio that facilitate growth of thinner SAPO-34 membranes with much higher quality. These membranes show high performance in separating N2/CH4 mixtures. Fine tuning the crystal structure by changing the crystal composition might be a feasible way for further improving the separating performance.

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