About

On the Cover

Skip slideshow

Giant nanocapsules with dimensions of up to 4 nm and a molecular weight of 57 kDa were obtained from Dawson-type polyoxometalates functionalized with aromatic boronic acids, as reported by Z. Zheng, C. Streb, X. Chen et al. in their Communication on page 8537. A “lock-and-key” organo-functionalization route was used for the regiospecific attachment of the boronic acids to prefunctionalized sites within the Dawson anions. This resulted in the aggregation of closed capsules rather than infinite networks.

Time-resolved impulsive stimulated Raman spectroscopy, which is an ultrafast time-domain Raman technique, facilitates capturing vibrational snapshots of excited-state molecules with high sensitivity and time resolution. By using this technique, D. Kim and co-workers demonstrate in their Research Article on page 8571 that structural symmetry breaking is an important prerequisite for a charge separation reaction in a donor-acceptor-donor perylene bisimide.

A volumetric 3D display system was developed by harnessing the photo-activated phosphorescence of two selected molecular phosphors in a photochemically deoxygenating solvent, as reported by W. Lu and co-workers in their Communication on page 8416. The phosphorescent voxels, 3D images, and animations are well-defined by the intersections of two programmable excitation beams, and are convenient for visualization with the naked eye with relatively high resolution.

The illumination of bacterial pathogens by a specific lanthanide luminescent turn-on probe is described by H.-Y. Hu, M. Nazaré, and co-workers in their Communication on page 8512. A non-fluorescent caged precursor is intracellularly activated by bacterial nitroreductase (NTR) to form a sensitizing, light-harvesting antenna. Entrapment of the probe inside bacterial cells allows for precise localization of live bacteria by fluorescence lifetime imaging.

more >

Latest News

May 19, 2020

Angewandte Chemie 22/2020: Fundamental Mechanisms

In this issue, M. Lansalot et al. review RAFT-mediated polymerization-induced self-assembly. What role does radical controlled/living polymerization play? The Minireviews deal with abiotic chemical fuels for molecular machines (C. Biagini, S. Di Stefano) and heavy-atom tunneling in organic reactions (C. Castro, W. L. Karney). C. Wentrup contributes an Essay on the history of olefin π-complexes, and D. Janssen-Müller and M. Oestreich highlight the bismuth-catalyzed C–F coupling of aryl boronic esters.

In the original research section, J. Crassous et al. describe the influence of helicene, halogen, and stereochemistry on the emission properties of helicene-NHC rhenium(II) complexes (see picture). Y. Ge et al. developed high-throughput proteomics enabled by a photocleavable surfactant. N. A. Kotov et al. present diverse nanoassemblies of graphene quantum dots and their mineralogical counterparts. R. M. Bullock et al. studied the mechanism of insertion of carbonyl substrates into Cu–H.

Browse issue 22/20202 now.

MORE >